40004264 has 16 divisors (see below), whose sum is σ = 79420500. Its totient is φ = 18825472.

The previous prime is 40004243. The next prime is 40004267. The reversal of 40004264 is 46240004.

It can be written as a sum of positive squares in 2 ways, for example, as 37724164 + 2280100 = 6142^2 + 1510^2 .

It is a super-2 number, since 2×40004264² = 3200682276363392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40004267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146939 + ... + 147210.

Almost surely, 2^40004264 is an apocalyptic number.

It is an amenable number.

40004264 is a deficient number, since it is larger than the sum of its proper divisors (39416236).

40004264 is a wasteful number, since it uses less digits than its factorization.

40004264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294172 (or 294168 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40004264 is about 6324.8924101521. The cubic root of 40004264 is about 342.0073411326.

Adding to 40004264 its reverse (46240004), we get a palindrome (86244268).

The spelling of 40004264 in words is "forty million, four thousand, two hundred sixty-four".