22089810 has 32 divisors (see below), whose sum is σ = 53569152. Its totient is φ = 5829120.

The previous prime is 22089803. The next prime is 22089839. The reversal of 22089810 is 1898022.

It is a super-2 number, since 2×22089810² = 975919411672200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 886 + ... + 6705.

It is an arithmetic number, because the mean of its divisors is an integer number (1674036).

Almost surely, 2^22089810 is an apocalyptic number.

22089810 is an abundant number, since it is smaller than the sum of its proper divisors (31479342).

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

22089810 is a wasteful number, since it uses less digits than its factorization.

22089810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 22089810 is about 4699.9797871906. The cubic root of 22089810 is about 280.5847050210.

The spelling of 22089810 in words is "twenty-two million, eighty-nine thousand, eight hundred ten".