42297432 has 32 divisors (see below), whose sum is σ = 106839600. Its totient is φ = 13953024.

The previous prime is 42297427. The next prime is 42297433. The reversal of 42297432 is 23479224.

It is a junction number, because it is equal to n+sod(n) for n = 42297393 and 42297402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42297433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6757 + ... + 11412.

Almost surely, 2^42297432 is an apocalyptic number.

It is an amenable number.

42297432 is an abundant number, since it is smaller than the sum of its proper divisors (64542168).

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

42297432 is a wasteful number, since it uses less digits than its factorization.

42297432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18275 (or 18271 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 42297432 is about 6503.6475919287. The cubic root of 42297432 is about 348.4212760462.

The spelling of 42297432 in words is "forty-two million, two hundred ninety-seven thousand, four hundred thirty-two".