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40060420 = 2252003021
BaseRepresentation
bin1001100011010…
…0011000000100
32210101021120021
42120310120010
540223413140
63550344524
7664336141
oct230643004
983337507
1040060420
1120681a94
12114bb144
1383b81ba
14546b3c8
1537b4b4a
hex2634604

40060420 has 12 divisors (see below), whose sum is σ = 84126924. Its totient is φ = 16024160.

The previous prime is 40060409. The next prime is 40060441. The reversal of 40060420 is 2406004.

It can be written as a sum of positive squares in 2 ways, for example, as 29419776 + 10640644 = 5424^2 + 3262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40060394 and 40060403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001491 + ... + 1001530.

It is an arithmetic number, because the mean of its divisors is an integer number (7010577).

Almost surely, 240060420 is an apocalyptic number.

It is an amenable number.

40060420 is an abundant number, since it is smaller than the sum of its proper divisors (44066504).

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

40060420 is a wasteful number, since it uses less digits than its factorization.

40060420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003030 (or 2003028 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40060420 is about 6329.3301383322. The cubic root of 40060420 is about 342.1672972859.

Adding to 40060420 its reverse (2406004), we get a palindrome (42466424).

The spelling of 40060420 in words is "forty million, sixty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2003021 4006042 8012084 10015105 20030210 40060420