747676240 has 20 divisors (see below), whose sum is σ = 1738347444. Its totient is φ = 299070464.

The previous prime is 747676229. The next prime is 747676243. The reversal of 747676240 is 42676747.

It can be written as a sum of positive squares in 2 ways, for example, as 346555456 + 401120784 = 18616^2 + 20028^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747676243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4672897 + ... + 4673056.

Almost surely, 2^747676240 is an apocalyptic number.

It is an amenable number.

747676240 is an abundant number, since it is smaller than the sum of its proper divisors (990671204).

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

747676240 is a wasteful number, since it uses less digits than its factorization.

747676240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9345966 (or 9345960 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 43.

The square root of 747676240 is about 27343.6691027375. The cubic root of 747676240 is about 907.6209807166.

The spelling of 747676240 in words is "seven hundred forty-seven million, six hundred seventy-six thousand, two hundred forty".