42394072 has 32 divisors (see below), whose sum is σ = 91065600. Its totient is φ = 18124704.

The previous prime is 42394067. The next prime is 42394091. The reversal of 42394072 is 27049324.

It is a congruent number.

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, 34053 + ... + 35275.

It is an arithmetic number, because the mean of its divisors is an integer number (2845800).

Almost surely, 2^42394072 is an apocalyptic number.

It is an amenable number.

42394072 is an abundant number, since it is smaller than the sum of its proper divisors (48671528).

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

42394072 is a wasteful number, since it uses less digits than its factorization.

42394072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855 (or 1851 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 42394072 is about 6511.0730298469. The cubic root of 42394072 is about 348.6864286349.

The spelling of 42394072 in words is "forty-two million, three hundred ninety-four thousand, seventy-two".