40635968 has 14 divisors (see below), whose sum is σ = 80637126. Its totient is φ = 20317952.

The previous prime is 40635949. The next prime is 40635971. The reversal of 40635968 is 86953604.

It can be written as a sum of positive squares in only one way, i.e., 38539264 + 2096704 = 6208^2 + 1448^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317405 + ... + 317532.

Almost surely, 2^40635968 is an apocalyptic number.

It is an amenable number.

40635968 is a deficient number, since it is larger than the sum of its proper divisors (40001158).

40635968 is an equidigital number, since it uses as much as digits as its factorization.

40635968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634949 (or 634939 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 40635968 is about 6374.6347346338. The cubic root of 40635968 is about 343.7981509188.

It can be divided in two parts, 4063596 and 8, that added together give a palindrome (4063604).

The spelling of 40635968 in words is "forty million, six hundred thirty-five thousand, nine hundred sixty-eight".