445164768 has 48 divisors (see below), whose sum is σ = 1298399760. Its totient is φ = 148387968.

The previous prime is 445164679. The next prime is 445164787. The reversal of 445164768 is 867461544.

It is a tau number, because it is divible by the number of its divisors (48).

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, 256755 + ... + 258482.

It is an arithmetic number, because the mean of its divisors is an integer number (27049995).

Almost surely, 2^445164768 is an apocalyptic number.

445164768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

445164768 is an abundant number, since it is smaller than the sum of its proper divisors (853234992).

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

445164768 is a wasteful number, since it uses less digits than its factorization.

445164768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515256 (or 515242 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 445164768 is about 21098.9281244332. The cubic root of 445164768 is about 763.5548881534.

It can be divided in two parts, 44516 and 4768, that added together give a square (49284 = 222²).

The spelling of 445164768 in words is "four hundred forty-five million, one hundred sixty-four thousand, seven hundred sixty-eight".