22037664 has 96 divisors (see below), whose sum is σ = 64774080. Its totient is φ = 6502400.

The previous prime is 22037647. The next prime is 22037669. The reversal of 22037664 is 46673022.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (22037669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43042 + ... + 43550.

It is an arithmetic number, because the mean of its divisors is an integer number (674730).

Almost surely, 2^22037664 is an apocalyptic number.

22037664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22037664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32387040).

22037664 is an abundant number, since it is smaller than the sum of its proper divisors (42736416).

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

22037664 is a wasteful number, since it uses less digits than its factorization.

22037664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 22037664 is about 4694.4290387650. The cubic root of 22037664 is about 280.3637449454.

The spelling of 22037664 in words is "twenty-two million, thirty-seven thousand, six hundred sixty-four".