745038720 has 96 divisors (see below), whose sum is σ = 2572731720. Its totient is φ = 198675456.

The previous prime is 745038709. The next prime is 745038733. The reversal of 745038720 is 27830547.

745038720 is a `hidden beast` number, since 74 + 503 + 87 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58914 + ... + 70433.

Almost surely, 2^745038720 is an apocalyptic number.

It is an amenable number.

745038720 is an abundant number, since it is smaller than the sum of its proper divisors (1827693000).

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

745038720 is a wasteful number, since it uses less digits than its factorization.

745038720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129372 (or 129357 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 745038720 is about 27295.3974142162. The cubic root of 745038720 is about 906.5524750457.

The spelling of 745038720 in words is "seven hundred forty-five million, thirty-eight thousand, seven hundred twenty".