42620940 has 36 divisors (see below), whose sum is σ = 129284064. Its totient is φ = 11365536.

The previous prime is 42620917. The next prime is 42620959. The reversal of 42620940 is 4902624.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118212 + ... + 118571.

It is an arithmetic number, because the mean of its divisors is an integer number (3591224).

Almost surely, 2^42620940 is an apocalyptic number.

It is an amenable number.

42620940 is an abundant number, since it is smaller than the sum of its proper divisors (86663124).

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

42620940 is a wasteful number, since it uses less digits than its factorization.

42620940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236798 (or 236793 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42620940 is about 6528.4714903260. The cubic root of 42620940 is about 349.3073102649.

The spelling of 42620940 in words is "forty-two million, six hundred twenty thousand, nine hundred forty".