42577992 has 36 divisors (see below), whose sum is σ = 115465545. Its totient is φ = 14174208.

The previous prime is 42577981. The next prime is 42578017. The reversal of 42577992 is 29977524.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 42068196 + 509796 = 6486^2 + 714^2 .

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

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4614.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54984 + ... + 55752.

Almost surely, 2^42577992 is an apocalyptic number.

It is an amenable number.

42577992 is an abundant number, since it is smaller than the sum of its proper divisors (72887553).

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

42577992 is an equidigital number, since it uses as much as digits as its factorization.

42577992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550 (or 774 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 42577992 is about 6525.1813767895. The cubic root of 42577992 is about 349.1899415705.

The spelling of 42577992 in words is "forty-two million, five hundred seventy-seven thousand, nine hundred ninety-two".