42279492 has 24 divisors (see below), whose sum is σ = 100947616. Its totient is φ = 13765248.

The previous prime is 42279469. The next prime is 42279529. The reversal of 42279492 is 29497224.

It is a self number, because there is not a number n which added to its sum of digits gives 42279492.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40453 + ... + 41484.

Almost surely, 2^42279492 is an apocalyptic number.

It is an amenable number.

42279492 is an abundant number, since it is smaller than the sum of its proper divisors (58668124).

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

42279492 is a wasteful number, since it uses less digits than its factorization.

42279492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81987 (or 81985 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 42279492 is about 6502.2682196292. The cubic root of 42279492 is about 348.3720093703.

The spelling of 42279492 in words is "forty-two million, two hundred seventy-nine thousand, four hundred ninety-two".