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2049404 = 227531381
BaseRepresentation
bin111110100010101111100
310212010020212
413310111330
51011040104
6111531552
723263640
oct7642574
93763225
102049404
11117a825
12829bb8
13569a86
143b4c20
152a736e
hex1f457c

2049404 has 24 divisors (see below), whose sum is σ = 4179168. Its totient is φ = 861120.

The previous prime is 2049361. The next prime is 2049407. The reversal of 2049404 is 4049402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2049404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049407) 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 7 ways as a sum of consecutive naturals, for example, 794 + ... + 2174.

It is an arithmetic number, because the mean of its divisors is an integer number (174132).

22049404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2049404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2089584).

2049404 is an abundant number, since it is smaller than the sum of its proper divisors (2129764).

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

2049404 is a wasteful number, since it uses less digits than its factorization.

2049404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2049404 is about 1431.5739589696. The cubic root of 2049404 is about 127.0210972040.

The spelling of 2049404 in words is "two million, forty-nine thousand, four hundred four".

Divisors: 1 2 4 7 14 28 53 106 212 371 742 1381 1484 2762 5524 9667 19334 38668 73193 146386 292772 512351 1024702 2049404