42156292 has 12 divisors (see below), whose sum is σ = 73944640. Its totient is φ = 21029256.

The previous prime is 42156251. The next prime is 42156299. The reversal of 42156292 is 29265124.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (42156299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10248 + ... + 13759.

Almost surely, 2^42156292 is an apocalyptic number.

It is an amenable number.

42156292 is a deficient number, since it is larger than the sum of its proper divisors (31788348).

42156292 is a wasteful number, since it uses less digits than its factorization.

42156292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24450 (or 24448 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 42156292 is about 6492.7876909691. The cubic root of 42156292 is about 348.0333015209.

The spelling of 42156292 in words is "forty-two million, one hundred fifty-six thousand, two hundred ninety-two".