40004732 has 24 divisors (see below), whose sum is σ = 71245440. Its totient is φ = 19652400.

The previous prime is 40004729. The next prime is 40004777. The reversal of 40004732 is 23740004.

It is a happy number.

40004732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×40004732³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64319 + ... + 64937.

It is an arithmetic number, because the mean of its divisors is an integer number (2968560).

Almost surely, 2^40004732 is an apocalyptic number.

It is an amenable number.

40004732 is a deficient number, since it is larger than the sum of its proper divisors (31240708).

40004732 is a wasteful number, since it uses less digits than its factorization.

40004732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 40004732 is about 6324.9294067207. The cubic root of 40004732 is about 342.0086748139.

Adding to 40004732 its reverse (23740004), we get a palindrome (63744736).

The spelling of 40004732 in words is "forty million, four thousand, seven hundred thirty-two".