442198864 has 40 divisors (see below), whose sum is σ = 874408320. Its totient is φ = 216572928.

The previous prime is 442198853. The next prime is 442198871. The reversal of 442198864 is 468891244.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332569 + ... + 333895.

It is an arithmetic number, because the mean of its divisors is an integer number (21860208).

Almost surely, 2^442198864 is an apocalyptic number.

It is an amenable number.

442198864 is a deficient number, since it is larger than the sum of its proper divisors (432209456).

442198864 is a wasteful number, since it uses less digits than its factorization.

442198864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747 (or 1741 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 442198864 is about 21028.5250077127. The cubic root of 442198864 is about 761.8553836739.

It can be divided in two parts, 4421 and 98864, that added together give a triangular number (103285 = T₄₅₄).

The spelling of 442198864 in words is "four hundred forty-two million, one hundred ninety-eight thousand, eight hundred sixty-four".