442709464 has 8 divisors (see below), whose sum is σ = 830080260. Its totient is φ = 221354728.

The previous prime is 442709437. The next prime is 442709471. The reversal of 442709464 is 464907244.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27669334 + ... + 27669349.

Almost surely, 2^442709464 is an apocalyptic number.

It is an amenable number.

442709464 is a deficient number, since it is larger than the sum of its proper divisors (387370796).

442709464 is a wasteful number, since it uses less digits than its factorization.

442709464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55338689 (or 55338685 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 442709464 is about 21040.6621568809. The cubic root of 442709464 is about 762.1485049829.

The spelling of 442709464 in words is "four hundred forty-two million, seven hundred nine thousand, four hundred sixty-four".