40252664 has 8 divisors (see below), whose sum is σ = 75473760. Its totient is φ = 20126328.

The previous prime is 40252661. The next prime is 40252673. The reversal of 40252664 is 46625204.

40252664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40252661) 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 as a sum of consecutive naturals, namely, 2515784 + ... + 2515799.

It is an arithmetic number, because the mean of its divisors is an integer number (9434220).

Almost surely, 2^40252664 is an apocalyptic number.

It is an amenable number.

40252664 is a deficient number, since it is larger than the sum of its proper divisors (35221096).

40252664 is a wasteful number, since it uses less digits than its factorization.

40252664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031589 (or 5031585 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 40252664 is about 6344.4987193631. The cubic root of 40252664 is about 342.7137607473.

Adding to 40252664 its reverse (46625204), we get a palindrome (86877868).

The spelling of 40252664 in words is "forty million, two hundred fifty-two thousand, six hundred sixty-four".