442887402 has 16 divisors (see below), whose sum is σ = 924287040. Its totient is φ = 141210432.

The previous prime is 442887377. The next prime is 442887413. The reversal of 442887402 is 204788244.

It is a super-2 number, since 2×442887402² = 392298501700619208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604527 + ... + 1604802.

It is an arithmetic number, because the mean of its divisors is an integer number (57767940).

Almost surely, 2^442887402 is an apocalyptic number.

442887402 is an abundant number, since it is smaller than the sum of its proper divisors (481399638).

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

442887402 is a wasteful number, since it uses less digits than its factorization.

442887402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209357.

The product of its (nonzero) digits is 114688, while the sum is 39.

The square root of 442887402 is about 21044.8901636478. The cubic root of 442887402 is about 762.2506012985.

The spelling of 442887402 in words is "four hundred forty-two million, eight hundred eighty-seven thousand, four hundred two".