745540704 has 72 divisors (see below), whose sum is σ = 2122782480. Its totient is φ = 248203008.

The previous prime is 745540687. The next prime is 745540727. The reversal of 745540704 is 407045547.

745540704 is a `hidden beast` number, since 7 + 45 + 540 + 70 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415842 + ... + 417630.

It is an arithmetic number, because the mean of its divisors is an integer number (29483090).

Almost surely, 2^745540704 is an apocalyptic number.

It is an amenable number.

745540704 is an abundant number, since it is smaller than the sum of its proper divisors (1377241776).

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

745540704 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (745540703) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (3241).

745540704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252 (or 3241 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 745540704 is about 27304.5912622768. The cubic root of 745540704 is about 906.7560316567.

The spelling of 745540704 in words is "seven hundred forty-five million, five hundred forty thousand, seven hundred four".