747040144 has 20 divisors (see below), whose sum is σ = 1448729820. Its totient is φ = 373174400.

The previous prime is 747040103. The next prime is 747040159. The reversal of 747040144 is 441040747.

It can be written as a sum of positive squares in 2 ways, for example, as 240250000 + 506790144 = 15500^2 + 22512^2 .

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, 3307 + ... + 38794.

It is an arithmetic number, because the mean of its divisors is an integer number (72436491).

Almost surely, 2^747040144 is an apocalyptic number.

It is an amenable number.

747040144 is a deficient number, since it is larger than the sum of its proper divisors (701689676).

747040144 is a wasteful number, since it uses less digits than its factorization.

747040144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43218 (or 43212 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 747040144 is about 27332.0351236420. The cubic root of 747040144 is about 907.3635172821.

The spelling of 747040144 in words is "seven hundred forty-seven million, forty thousand, one hundred forty-four".