42599720 has 32 divisors (see below), whose sum is σ = 96253920. Its totient is φ = 16968000.

The previous prime is 42599717. The next prime is 42599771. The reversal of 42599720 is 2799524.

It is a super-2 number, since 2×42599720² = 3629472288156800, which contains 22 as substring.

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, 7919 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (3007935).

Almost surely, 2^42599720 is an apocalyptic number.

42599720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42599720 is an abundant number, since it is smaller than the sum of its proper divisors (53654200).

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

42599720 is a wasteful number, since it uses less digits than its factorization.

42599720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505 (or 4501 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 42599720 is about 6526.8460989976. The cubic root of 42599720 is about 349.2493299106.

The spelling of 42599720 in words is "forty-two million, five hundred ninety-nine thousand, seven hundred twenty".