22575040 has 112 divisors (see below), whose sum is σ = 58521600. Its totient is φ = 8266752.

The previous prime is 22575023. The next prime is 22575041. The reversal of 22575040 is 4057522.

It is a junction number, because it is equal to n+sod(n) for n = 22574996 and 22575014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22575041) 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, 285721 + ... + 285799.

Almost surely, 2^22575040 is an apocalyptic number.

22575040 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 22575040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29260800).

22575040 is an abundant number, since it is smaller than the sum of its proper divisors (35946560).

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

22575040 is a wasteful number, since it uses less digits than its factorization.

22575040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 22575040 is about 4751.3198166404. The cubic root of 22575040 is about 282.6243063772.

The spelling of 22575040 in words is "twenty-two million, five hundred seventy-five thousand, forty".