64390122 has 24 divisors (see below), whose sum is σ = 141878880. Its totient is φ = 21099240.

The previous prime is 64390103. The next prime is 64390159. The reversal of 64390122 is 22109346.

64390122 is a `hidden beast` number, since 643 + 9 + 0 + 12 + 2 = 666.

It is a super-2 number, since 2×64390122² = 8292175622349768, which contains 22 as substring.

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29254 + ... + 31377.

It is an arithmetic number, because the mean of its divisors is an integer number (5911620).

Almost surely, 2^64390122 is an apocalyptic number.

64390122 is an abundant number, since it is smaller than the sum of its proper divisors (77488758).

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

64390122 is a wasteful number, since it uses less digits than its factorization.

64390122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60698 (or 60695 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 64390122 is about 8024.3455807935. The cubic root of 64390122 is about 400.8111083132.

Adding to 64390122 its reverse (22109346), we get a palindrome (86499468).

The spelling of 64390122 in words is "sixty-four million, three hundred ninety thousand, one hundred twenty-two".