22402660 has 24 divisors (see below), whose sum is σ = 53766720. Its totient is φ = 7680864.

The previous prime is 22402657. The next prime is 22402663. The reversal of 22402660 is 6620422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22402657) and next prime (22402663).

It is not an unprimeable number, because it can be changed into a prime (22402663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79870 + ... + 80149.

It is an arithmetic number, because the mean of its divisors is an integer number (2240280).

Almost surely, 2^22402660 is an apocalyptic number.

22402660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22402660 is an abundant number, since it is smaller than the sum of its proper divisors (31364060).

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

22402660 is a wasteful number, since it uses less digits than its factorization.

22402660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160035 (or 160033 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 22402660 is about 4733.1448319273. The cubic root of 22402660 is about 281.9031070639.

It can be divided in two parts, 2240 and 2660, that added together give a square (4900 = 70²).

The spelling of 22402660 in words is "twenty-two million, four hundred two thousand, six hundred sixty".