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34454440 = 235861361
BaseRepresentation
bin1000001101101…
…1101110101000
32101211110121101
42003123232220
532310020230
63230251144
7565600156
oct203335650
971743541
1034454440
11184a3149
12b656ab4
1371a4657
14480c3d6
153058aca
hex20dbba8

34454440 has 16 divisors (see below), whose sum is σ = 77522580. Its totient is φ = 13781760.

The previous prime is 34454419. The next prime is 34454443. The reversal of 34454440 is 4445443.

34454440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33385284 + 1069156 = 5778^2 + 1034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34454399 and 34454408.

It is not an unprimeable number, because it can be changed into a prime (34454443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430641 + ... + 430720.

Almost surely, 234454440 is an apocalyptic number.

It is an amenable number.

34454440 is an abundant number, since it is smaller than the sum of its proper divisors (43068140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34454440 is a wasteful number, since it uses less digits than its factorization.

34454440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861372 (or 861368 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 34454440 is about 5869.7904562258. The cubic root of 34454440 is about 325.3981392817.

Adding to 34454440 its reverse (4445443), we get a palindrome (38899883).

The spelling of 34454440 in words is "thirty-four million, four hundred fifty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 861361 1722722 3445444 4306805 6890888 8613610 17227220 34454440