22735280 has 20 divisors (see below), whose sum is σ = 52859712. Its totient is φ = 9094080.

The previous prime is 22735241. The next prime is 22735289. The reversal of 22735280 is 8253722.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×22735280³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22735289) 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 3 ways as a sum of consecutive naturals, for example, 142016 + ... + 142175.

Almost surely, 2^22735280 is an apocalyptic number.

22735280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22735280 is an abundant number, since it is smaller than the sum of its proper divisors (30124432).

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

22735280 is a wasteful number, since it uses less digits than its factorization.

22735280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284204 (or 284198 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 22735280 is about 4768.1526821191. The cubic root of 22735280 is about 283.2914294046.

The spelling of 22735280 in words is "twenty-two million, seven hundred thirty-five thousand, two hundred eighty".