747040431 has 8 divisors (see below), whose sum is σ = 996593200. Its totient is φ = 497757312.

The previous prime is 747040379. The next prime is 747040439. The reversal of 747040431 is 134040747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 747040431 - 2⁷ = 747040303 is a prime.

It is a super-2 number, since 2×747040431² = 1116138811097331522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747040439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60856 + ... + 72093.

It is an arithmetic number, because the mean of its divisors is an integer number (124574150).

Almost surely, 2^747040431 is an apocalyptic number.

747040431 is a deficient number, since it is larger than the sum of its proper divisors (249552769).

747040431 is a wasteful number, since it uses less digits than its factorization.

747040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134825.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 747040431 is about 27332.0403738909. The cubic root of 747040431 is about 907.3636334800.

The spelling of 747040431 in words is "seven hundred forty-seven million, forty thousand, four hundred thirty-one".