22535280 has 80 divisors (see below), whose sum is σ = 77628960. Its totient is φ = 6008832.

The previous prime is 22535263. The next prime is 22535287. The reversal of 22535280 is 8253522.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22535287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3057 + ... + 7376.

It is an arithmetic number, because the mean of its divisors is an integer number (970362).

Almost surely, 2^22535280 is an apocalyptic number.

22535280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22535280 is an abundant number, since it is smaller than the sum of its proper divisors (55093680).

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

22535280 is a wasteful number, since it uses less digits than its factorization.

22535280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10455 (or 10443 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 22535280 is about 4747.1338721380. The cubic root of 22535280 is about 282.4582860590.

The spelling of 22535280 in words is "twenty-two million, five hundred thirty-five thousand, two hundred eighty".