42426504 has 80 divisors (see below), whose sum is σ = 119768220. Its totient is φ = 14031360.

The previous prime is 42426497. The next prime is 42426521. The reversal of 42426504 is 40562424.

42426504 is a `hidden beast` number, since 4 + 2 + 4 + 2 + 650 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42224004 + 202500 = 6498^2 + 450^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 150844 + ... + 151124.

Almost surely, 2^42426504 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 42426504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59884110).

42426504 is an abundant number, since it is smaller than the sum of its proper divisors (77341716).

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

42426504 is a wasteful number, since it uses less digits than its factorization.

42426504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 42426504 is about 6513.5630802196. The cubic root of 42426504 is about 348.7753224763.

Adding to 42426504 its reverse (40562424), we get a palindrome (82988928).

The spelling of 42426504 in words is "forty-two million, four hundred twenty-six thousand, five hundred four".