445032464 has 10 divisors (see below), whose sum is σ = 862250430. Its totient is φ = 222516224.

The previous prime is 445032461. The next prime is 445032487. The reversal of 445032464 is 464230544.

It can be written as a sum of positive squares in only one way, i.e., 444872464 + 160000 = 21092^2 + 400^2 .

It is a super-2 number, since 2×445032464² = 396107788027822592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 445032464.

It is not an unprimeable number, because it can be changed into a prime (445032461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13907249 + ... + 13907280.

It is an arithmetic number, because the mean of its divisors is an integer number (86225043).

Almost surely, 2^445032464 is an apocalyptic number.

It is an amenable number.

445032464 is a deficient number, since it is larger than the sum of its proper divisors (417217966).

445032464 is a wasteful number, since it uses less digits than its factorization.

445032464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27814537 (or 27814531 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 445032464 is about 21095.7925662915. The cubic root of 445032464 is about 763.4792372313.

The spelling of 445032464 in words is "four hundred forty-five million, thirty-two thousand, four hundred sixty-four".