22729960 has 32 divisors (see below), whose sum is σ = 55792800. Its totient is φ = 8265280.

The previous prime is 22729943. The next prime is 22729961. The reversal of 22729960 is 6992722.

It is not an unprimeable number, because it can be changed into a prime (22729961) 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, 25390 + ... + 26269.

It is an arithmetic number, because the mean of its divisors is an integer number (1743525).

Almost surely, 2^22729960 is an apocalyptic number.

22729960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22729960 is an abundant number, since it is smaller than the sum of its proper divisors (33062840).

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

22729960 is a wasteful number, since it uses less digits than its factorization.

22729960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51681 (or 51677 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 22729960 is about 4767.5947814385. The cubic root of 22729960 is about 283.2693311799.

The spelling of 22729960 in words is "twenty-two million, seven hundred twenty-nine thousand, nine hundred sixty".