40504739 has 16 divisors (see below), whose sum is σ = 45360000. Its totient is φ = 35857920.

The previous prime is 40504733. The next prime is 40504759. The reversal of 40504739 is 93740504.

It is a cyclic number.

It is not a de Polignac number, because 40504739 - 2¹² = 40500643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40504733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89987 + ... + 90435.

It is an arithmetic number, because the mean of its divisors is an integer number (2835000).

Almost surely, 2^40504739 is an apocalyptic number.

40504739 is a deficient number, since it is larger than the sum of its proper divisors (4855261).

40504739 is a wasteful number, since it uses less digits than its factorization.

40504739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 40504739 is about 6364.3333507917. Note that the first 4 decimals coincide. The cubic root of 40504739 is about 343.4276668135.

The spelling of 40504739 in words is "forty million, five hundred four thousand, seven hundred thirty-nine".