42490512 has 30 divisors (see below), whose sum is σ = 118914822. Its totient is φ = 14163456.

The previous prime is 42490507. The next prime is 42490523. The reversal of 42490512 is 21509424.

It can be written as a sum of positive squares in only one way, i.e., 26998416 + 15492096 = 5196^2 + 3936^2 .

It is a super-2 number, since 2×42490512² = 3610887220044288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147393 + ... + 147680.

Almost surely, 2^42490512 is an apocalyptic number.

It is an amenable number.

42490512 is an abundant number, since it is smaller than the sum of its proper divisors (76424310).

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

42490512 is a wasteful number, since it uses less digits than its factorization.

42490512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295087 (or 295078 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 42490512 is about 6518.4746682027. The cubic root of 42490512 is about 348.9506310793.

Adding to 42490512 its reverse (21509424), we get a palindrome (63999936).

The spelling of 42490512 in words is "forty-two million, four hundred ninety thousand, five hundred twelve".