64622222 has 32 divisors (see below), whose sum is σ = 112907520. Its totient is φ = 27169920.

The previous prime is 64622189. The next prime is 64622251. The reversal of 64622222 is 22222646.

64622222 is a modest number, since divided by 22222 gives 646 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 64622191 and 64622200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268022 + ... + 268262.

It is an arithmetic number, because the mean of its divisors is an integer number (3528360).

Almost surely, 2^64622222 is an apocalyptic number.

64622222 is a deficient number, since it is larger than the sum of its proper divisors (48285298).

64622222 is a wasteful number, since it uses less digits than its factorization.

64622222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536.

The product of its digits is 4608, while the sum is 26.

The square root of 64622222 is about 8038.7948101690. The cubic root of 64622222 is about 401.2921174204.

Adding to 64622222 its reverse (22222646), we get a palindrome (86844868).

The spelling of 64622222 in words is "sixty-four million, six hundred twenty-two thousand, two hundred twenty-two".