40744731 has 8 divisors (see below), whose sum is σ = 55070800. Its totient is φ = 26790912.

The previous prime is 40744709. The next prime is 40744741. The reversal of 40744731 is 13744704.

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

It is not a de Polignac number, because 40744731 - 2⁶ = 40744667 is a prime.

It is a super-2 number, since 2×40744731² = 3320266208524722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40744741) 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, 92806 + ... + 93243.

It is an arithmetic number, because the mean of its divisors is an integer number (6883850).

Almost surely, 2^40744731 is an apocalyptic number.

40744731 is a deficient number, since it is larger than the sum of its proper divisors (14326069).

40744731 is a wasteful number, since it uses less digits than its factorization.

40744731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186125.

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

The square root of 40744731 is about 6383.1599541293. The cubic root of 40744731 is about 344.1046052665.

The spelling of 40744731 in words is "forty million, seven hundred forty-four thousand, seven hundred thirty-one".