22736880 has 120 divisors (see below), whose sum is σ = 79735968. Its totient is φ = 5795328.

The previous prime is 22736873. The next prime is 22736891. The reversal of 22736880 is 8863722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15874 + ... + 17246.

It is a vampire number, since it can be written as 2760 ⋅ 8238 (with its own digits).

Almost surely, 2^22736880 is an apocalyptic number.

22736880 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 22736880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39867984).

22736880 is an abundant number, since it is smaller than the sum of its proper divisors (56999088).

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

22736880 is a wasteful number, since it uses less digits than its factorization.

22736880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 22736880 is about 4768.3204590296. The cubic root of 22736880 is about 283.2980748129.

The spelling of 22736880 in words is "twenty-two million, seven hundred thirty-six thousand, eight hundred eighty".