22023280 has 40 divisors (see below), whose sum is σ = 53902800. Its totient is φ = 8345088.

The previous prime is 22023271. The next prime is 22023283. The reversal of 22023280 is 8232022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023283) 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, 5725 + ... + 8764.

It is an arithmetic number, because the mean of its divisors is an integer number (1347570).

Almost surely, 2^22023280 is an apocalyptic number.

22023280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22023280 is an abundant number, since it is smaller than the sum of its proper divisors (31879520).

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

22023280 is a wasteful number, since it uses less digits than its factorization.

22023280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14521 (or 14515 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22023280 is about 4692.8967599980. The cubic root of 22023280 is about 280.3027337931.

It can be divided in two parts, 220 and 23280, that multiplied together give a triangular number (5121600 = T₃₂₀₀).

The spelling of 22023280 in words is "twenty-two million, twenty-three thousand, two hundred eighty".