442624620 has 24 divisors (see below), whose sum is σ = 1239349104. Its totient is φ = 118033216.

The previous prime is 442624613. The next prime is 442624621. The reversal of 442624620 is 26426244.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (442624621) 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, 3688479 + ... + 3688598.

It is an arithmetic number, because the mean of its divisors is an integer number (51639546).

Almost surely, 2^442624620 is an apocalyptic number.

It is an amenable number.

442624620 is an abundant number, since it is smaller than the sum of its proper divisors (796724484).

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

442624620 is a wasteful number, since it uses less digits than its factorization.

442624620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377089 (or 7377087 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 442624620 is about 21038.6458689717. The cubic root of 442624620 is about 762.0998140134.

The spelling of 442624620 in words is "four hundred forty-two million, six hundred twenty-four thousand, six hundred twenty".