64420910 has 16 divisors (see below), whose sum is σ = 116159616. Its totient is φ = 25723488.

The previous prime is 64420903. The next prime is 64420913. The reversal of 64420910 is 1902446.

It is a self number, because there is not a number n which added to its sum of digits gives 64420910.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64420913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764 + ... + 11376.

It is an arithmetic number, because the mean of its divisors is an integer number (7259976).

Almost surely, 2^64420910 is an apocalyptic number.

64420910 is a deficient number, since it is larger than the sum of its proper divisors (51738706).

64420910 is a wasteful number, since it uses less digits than its factorization.

64420910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11227.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 64420910 is about 8026.2637634207. The cubic root of 64420910 is about 400.8749804607.

The spelling of 64420910 in words is "sixty-four million, four hundred twenty thousand, nine hundred ten".