740737731 has 16 divisors (see below), whose sum is σ = 998117120. Its totient is φ = 488604960.

The previous prime is 740737727. The next prime is 740737759. The reversal of 740737731 is 137737047.

It is not a de Polignac number, because 740737731 - 2² = 740737727 is a prime.

It is a super-2 number, since 2×740737731² = 1097384772254056722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 740737731.

It is not an unprimeable number, because it can be changed into a prime (740737771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346536 + ... + 348666.

It is an arithmetic number, because the mean of its divisors is an integer number (62382320).

Almost surely, 2^740737731 is an apocalyptic number.

740737731 is a deficient number, since it is larger than the sum of its proper divisors (257379389).

740737731 is a wasteful number, since it uses less digits than its factorization.

740737731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306.

The product of its (nonzero) digits is 86436, while the sum is 39.

The square root of 740737731 is about 27216.4974050667. The cubic root of 740737731 is about 904.8046467426.

The spelling of 740737731 in words is "seven hundred forty million, seven hundred thirty-seven thousand, seven hundred thirty-one".