64122402 has 16 divisors (see below), whose sum is σ = 135788832. Its totient is φ = 20116800.

The previous prime is 64122391. The next prime is 64122403. The reversal of 64122402 is 20422146.

64122402 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-2 number, since 2×64122402² = 8223364876499208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64122403) 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 in 7 ways as a sum of consecutive naturals, for example, 314224 + ... + 314427.

It is an arithmetic number, because the mean of its divisors is an integer number (8486802).

Almost surely, 2^64122402 is an apocalyptic number.

64122402 is an abundant number, since it is smaller than the sum of its proper divisors (71666430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64122402 is a wasteful number, since it uses less digits than its factorization.

64122402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628673.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 64122402 is about 8007.6464707178. The cubic root of 64122402 is about 400.2548417714.

Adding to 64122402 its reverse (20422146), we get a palindrome (84544548).

The spelling of 64122402 in words is "sixty-four million, one hundred twenty-two thousand, four hundred two".