22773960 has 224 divisors, whose sum is σ = 84991680. Its totient is φ = 5443200.

The previous prime is 22773911. The next prime is 22773967. The reversal of 22773960 is 6937722.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22773967) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 320725 + ... + 320795.

Almost surely, 2^22773960 is an apocalyptic number.

22773960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22773960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42495840).

22773960 is an abundant number, since it is smaller than the sum of its proper divisors (62217720).

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

22773960 is a wasteful number, since it uses less digits than its factorization.

22773960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 22773960 is about 4772.2070365817. The cubic root of 22773960 is about 283.4519948952.

The spelling of 22773960 in words is "twenty-two million, seven hundred seventy-three thousand, nine hundred sixty".