40504731 has 4 divisors (see below), whose sum is σ = 54006312. Its totient is φ = 27003152.

The previous prime is 40504703. The next prime is 40504733. The reversal of 40504731 is 13740504.

40504731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40504731 - 2⁵ = 40504699 is a prime.

It is a super-2 number, since 2×40504731² = 3281266466764722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40504733) 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 3 ways as a sum of consecutive naturals, for example, 6750786 + ... + 6750791.

It is an arithmetic number, because the mean of its divisors is an integer number (13501578).

Almost surely, 2^40504731 is an apocalyptic number.

40504731 is a deficient number, since it is larger than the sum of its proper divisors (13501581).

40504731 is a wasteful number, since it uses less digits than its factorization.

40504731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13501580.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 40504731 is about 6364.3327222891. The cubic root of 40504731 is about 343.4276442036.

The spelling of 40504731 in words is "forty million, five hundred four thousand, seven hundred thirty-one".