22573140 has 48 divisors (see below), whose sum is σ = 66534720. Its totient is φ = 5702400.

The previous prime is 22573129. The next prime is 22573147. The reversal of 22573140 is 4137522.

It is a self number, because there is not a number n which added to its sum of digits gives 22573140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22573147) 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, 8761 + ... + 11040.

It is an arithmetic number, because the mean of its divisors is an integer number (1386140).

Almost surely, 2^22573140 is an apocalyptic number.

22573140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22573140 is an abundant number, since it is smaller than the sum of its proper divisors (43961580).

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

22573140 is a wasteful number, since it uses less digits than its factorization.

22573140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19832 (or 19830 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 22573140 is about 4751.1198679890. The cubic root of 22573140 is about 282.6163772477.

The spelling of 22573140 in words is "twenty-two million, five hundred seventy-three thousand, one hundred forty".