42923320 has 32 divisors (see below), whose sum is σ = 105358320. Its totient is φ = 15608320.

The previous prime is 42923311. The next prime is 42923347. The reversal of 42923320 is 2332924.

It is a super-2 number, since 2×42923320² = 3684822799644800, which contains 22 as substring.

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, 48337 + ... + 49216.

Almost surely, 2^42923320 is an apocalyptic number.

42923320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42923320 is an abundant number, since it is smaller than the sum of its proper divisors (62435000).

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

42923320 is a wasteful number, since it uses less digits than its factorization.

42923320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97575 (or 97571 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 42923320 is about 6551.5891202059. The cubic root of 42923320 is about 350.1314336304.

The spelling of 42923320 in words is "forty-two million, nine hundred twenty-three thousand, three hundred twenty".