42912492 has 48 divisors (see below), whose sum is σ = 114777600. Its totient is φ = 12223872.

The previous prime is 42912491. The next prime is 42912511. The reversal of 42912492 is 29421924.

It is not an unprimeable number, because it can be changed into a prime (42912491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40384 + ... + 41432.

It is an arithmetic number, because the mean of its divisors is an integer number (2391200).

Almost surely, 2^42912492 is an apocalyptic number.

42912492 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42912492 is an abundant number, since it is smaller than the sum of its proper divisors (71865108).

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

42912492 is a wasteful number, since it uses less digits than its factorization.

42912492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1548 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 42912492 is about 6550.7627036857. The cubic root of 42912492 is about 350.1019893252.

It can be divided in two parts, 429 and 12492, that added together give a palindrome (12921).

The spelling of 42912492 in words is "forty-two million, nine hundred twelve thousand, four hundred ninety-two".