42394992 has 20 divisors (see below), whose sum is σ = 109520520. Its totient is φ = 14131648.

The previous prime is 42394973. The next prime is 42394993. The reversal of 42394992 is 29949324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42394993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441567 + ... + 441662.

It is an arithmetic number, because the mean of its divisors is an integer number (5476026).

Almost surely, 2^42394992 is an apocalyptic number.

It is an amenable number.

42394992 is an abundant number, since it is smaller than the sum of its proper divisors (67125528).

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

42394992 is a wasteful number, since it uses less digits than its factorization.

42394992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883240 (or 883234 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 42394992 is about 6511.1436783410. The cubic root of 42394992 is about 348.6889509151.

The spelling of 42394992 in words is "forty-two million, three hundred ninety-four thousand, nine hundred ninety-two".