22889988 has 36 divisors (see below), whose sum is σ = 63121968. Its totient is φ = 6936240.

The previous prime is 22889969. The next prime is 22890029. The reversal of 22889988 is 88998822.

It is a tau number, because it is divible by the number of its divisors (36).

It is a zygodrome in base 10.

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, 28506 + ... + 29297.

It is an arithmetic number, because the mean of its divisors is an integer number (1753388).

Almost surely, 2^22889988 is an apocalyptic number.

It is an amenable number.

22889988 is an abundant number, since it is smaller than the sum of its proper divisors (40231980).

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

22889988 is a wasteful number, since it uses less digits than its factorization.

22889988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57824 (or 57819 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The square root of 22889988 is about 4784.3482314731. The cubic root of 22889988 is about 283.9325535796.

The spelling of 22889988 in words is "twenty-two million, eight hundred eighty-nine thousand, nine hundred eighty-eight".