22422690 has 32 divisors (see below), whose sum is σ = 59794560. Its totient is φ = 5979312.

The previous prime is 22422683. The next prime is 22422721. The reversal of 22422690 is 9622422.

It is a super-2 number, since 2×22422690² = 1005554053672200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 41254 + ... + 41793.

It is an arithmetic number, because the mean of its divisors is an integer number (1868580).

Almost surely, 2^22422690 is an apocalyptic number.

22422690 is an abundant number, since it is smaller than the sum of its proper divisors (37371870).

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

22422690 is a wasteful number, since it uses less digits than its factorization.

22422690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83063 (or 83057 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22422690 is about 4735.2602885164. The cubic root of 22422690 is about 281.9870976442.

The spelling of 22422690 in words is "twenty-two million, four hundred twenty-two thousand, six hundred ninety".