442630870 has 32 divisors (see below), whose sum is σ = 920297376. Its totient is φ = 151488000.

The previous prime is 442630847. The next prime is 442630879. The reversal of 442630870 is 78036244.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442630879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116481 + ... + 120220.

It is an arithmetic number, because the mean of its divisors is an integer number (28759293).

Almost surely, 2^442630870 is an apocalyptic number.

442630870 is an abundant number, since it is smaller than the sum of its proper divisors (477666506).

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

442630870 is a wasteful number, since it uses less digits than its factorization.

442630870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236736.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 442630870 is about 21038.7944046231. The cubic root of 442630870 is about 762.1034010268.

The spelling of 442630870 in words is "four hundred forty-two million, six hundred thirty thousand, eight hundred seventy".