64120626 has 16 divisors (see below), whose sum is σ = 142490400. Its totient is φ = 21373524.

The previous prime is 64120621. The next prime is 64120627. The reversal of 64120626 is 62602146.

It is a happy number.

It is a super-2 number, since 2×64120626² = 8222909357263752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 64120626.

It is not an unprimeable number, because it can be changed into a prime (64120621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593656 + ... + 593763.

It is an arithmetic number, because the mean of its divisors is an integer number (8905650).

Almost surely, 2^64120626 is an apocalyptic number.

64120626 is an abundant number, since it is smaller than the sum of its proper divisors (78369774).

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

64120626 is a wasteful number, since it uses less digits than its factorization.

64120626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187430 (or 1187424 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 64120626 is about 8007.5355759435. The cubic root of 64120626 is about 400.2511464473.

It can be divided in two parts, 64120 and 626, that added together give a palindrome (64746).

The spelling of 64120626 in words is "sixty-four million, one hundred twenty thousand, six hundred twenty-six".