42572394 has 24 divisors (see below), whose sum is σ = 93805920. Its totient is φ = 13949928.

The previous prime is 42572357. The next prime is 42572417. The reversal of 42572394 is 49327524.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18982 + ... + 21105.

It is an arithmetic number, because the mean of its divisors is an integer number (3908580).

Almost surely, 2^42572394 is an apocalyptic number.

42572394 is an abundant number, since it is smaller than the sum of its proper divisors (51233526).

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

42572394 is a wasteful number, since it uses less digits than its factorization.

42572394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40154 (or 40151 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 42572394 is about 6524.7524090957. The cubic root of 42572394 is about 349.1746374907.

The spelling of 42572394 in words is "forty-two million, five hundred seventy-two thousand, three hundred ninety-four".