22477446 has 16 divisors (see below), whose sum is σ = 49950000. Its totient is φ = 7492464.

The previous prime is 22477439. The next prime is 22477447. The reversal of 22477446 is 64477422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22477446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22477447) 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, 208071 + ... + 208178.

It is an arithmetic number, because the mean of its divisors is an integer number (3121875).

Almost surely, 2^22477446 is an apocalyptic number.

22477446 is an abundant number, since it is smaller than the sum of its proper divisors (27472554).

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

22477446 is a wasteful number, since it uses less digits than its factorization.

22477446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416260 (or 416254 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 22477446 is about 4741.0384938323. The cubic root of 22477446 is about 282.2164476766.

The spelling of 22477446 in words is "twenty-two million, four hundred seventy-seven thousand, four hundred forty-six".