64427022 has 32 divisors (see below), whose sum is σ = 156188160. Its totient is φ = 19523160.

The previous prime is 64427017. The next prime is 64427023. The reversal of 64427022 is 22072446.

It is a happy number.

64427022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64427023) 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 15 ways as a sum of consecutive naturals, for example, 53638 + ... + 54825.

It is an arithmetic number, because the mean of its divisors is an integer number (4880880).

Almost surely, 2^64427022 is an apocalyptic number.

64427022 is an abundant number, since it is smaller than the sum of its proper divisors (91761138).

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

64427022 is a wasteful number, since it uses less digits than its factorization.

64427022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108485 (or 108479 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 64427022 is about 8026.6445043991. The cubic root of 64427022 is about 400.8876578683.

Adding to 64427022 its reverse (22072446), we get a palindrome (86499468).

The spelling of 64427022 in words is "sixty-four million, four hundred twenty-seven thousand, twenty-two".