442240464 has 40 divisors (see below), whose sum is σ = 1143241312. Its totient is φ = 147312000.

The previous prime is 442240457. The next prime is 442240507. The reversal of 442240464 is 464042244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106002 + ... + 110094.

Almost surely, 2^442240464 is an apocalyptic number.

It is an amenable number.

442240464 is an abundant number, since it is smaller than the sum of its proper divisors (701000848).

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

442240464 is a wasteful number, since it uses less digits than its factorization.

442240464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6355 (or 6349 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 442240464 is about 21029.5141170689. The cubic root of 442240464 is about 761.8792735213.

The spelling of 442240464 in words is "four hundred forty-two million, two hundred forty thousand, four hundred sixty-four".