445613628 has 12 divisors (see below), whose sum is σ = 1039765160. Its totient is φ = 148537872.

The previous prime is 445613611. The next prime is 445613657. The reversal of 445613628 is 826316544.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18567223 + ... + 18567246.

Almost surely, 2^445613628 is an apocalyptic number.

It is an amenable number.

445613628 is an abundant number, since it is smaller than the sum of its proper divisors (594151532).

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

445613628 is a wasteful number, since it uses less digits than its factorization.

445613628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37134476 (or 37134474 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 445613628 is about 21109.5624777019. The cubic root of 445613628 is about 763.8114329542.

The spelling of 445613628 in words is "four hundred forty-five million, six hundred thirteen thousand, six hundred twenty-eight".