445681304 has 32 divisors (see below), whose sum is σ = 873573120. Its totient is φ = 212763936.

The previous prime is 445681303. The next prime is 445681319. The reversal of 445681304 is 403186544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445681303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116429 + ... + 120195.

It is an arithmetic number, because the mean of its divisors is an integer number (27299160).

Almost surely, 2^445681304 is an apocalyptic number.

It is an amenable number.

445681304 is a deficient number, since it is larger than the sum of its proper divisors (427891816).

445681304 is a wasteful number, since it uses less digits than its factorization.

445681304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439 (or 4435 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 445681304 is about 21111.1653870647. The cubic root of 445681304 is about 763.8500980538.

The spelling of 445681304 in words is "four hundred forty-five million, six hundred eighty-one thousand, three hundred four".