442906230 has 32 divisors (see below), whose sum is σ = 1144743264. Its totient is φ = 109022976.

The previous prime is 442906229. The next prime is 442906249. The reversal of 442906230 is 32609244.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567439 + ... + 568218.

It is an arithmetic number, because the mean of its divisors is an integer number (35773227).

Almost surely, 2^442906230 is an apocalyptic number.

442906230 is an abundant number, since it is smaller than the sum of its proper divisors (701837034).

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

442906230 is a wasteful number, since it uses less digits than its factorization.

442906230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135680.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 442906230 is about 21045.3374883845. The cubic root of 442906230 is about 762.2614027279.

The spelling of 442906230 in words is "four hundred forty-two million, nine hundred six thousand, two hundred thirty".