745579872 has 36 divisors (see below), whose sum is σ = 2120243580. Its totient is φ = 248526528.

The previous prime is 745579843. The next prime is 745579883. The reversal of 745579872 is 278975547.

It is a happy number.

745579872 is a `hidden beast` number, since 7 + 4 + 557 + 9 + 87 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1294122 + ... + 1294697.

It is an arithmetic number, because the mean of its divisors is an integer number (58895655).

Almost surely, 2^745579872 is an apocalyptic number.

745579872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

745579872 is an abundant number, since it is smaller than the sum of its proper divisors (1374663708).

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

745579872 is a wasteful number, since it uses less digits than its factorization.

745579872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588835 (or 2588824 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 54.

The square root of 745579872 is about 27305.3084948696. The cubic root of 745579872 is about 906.7719106012.

The spelling of 745579872 in words is "seven hundred forty-five million, five hundred seventy-nine thousand, eight hundred seventy-two".