22798940 has 24 divisors (see below), whose sum is σ = 47999952. Its totient is φ = 9096320.

The previous prime is 22798931. The next prime is 22798943. The reversal of 22798940 is 4989722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22798943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8120 + ... + 10560.

It is an arithmetic number, because the mean of its divisors is an integer number (1999998).

Almost surely, 2^22798940 is an apocalyptic number.

22798940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22798940 is an abundant number, since it is smaller than the sum of its proper divisors (25201012).

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

22798940 is a wasteful number, since it uses less digits than its factorization.

22798940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917 (or 2915 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 22798940 is about 4774.8235569495. The cubic root of 22798940 is about 283.5555933847. Note that the first 4 decimals are identical.

The spelling of 22798940 in words is "twenty-two million, seven hundred ninety-eight thousand, nine hundred forty".