22875420 has 48 divisors (see below), whose sum is σ = 64471680. Its totient is φ = 6060096.

The previous prime is 22875401. The next prime is 22875431. The reversal of 22875420 is 2457822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8611 + ... + 10949.

It is an arithmetic number, because the mean of its divisors is an integer number (1343160).

Almost surely, 2^22875420 is an apocalyptic number.

22875420 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 22875420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32235840).

22875420 is an abundant number, since it is smaller than the sum of its proper divisors (41596260).

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

22875420 is a wasteful number, since it uses less digits than its factorization.

22875420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 22875420 is about 4782.8255247291. The cubic root of 22875420 is about 283.8723058816.

The spelling of 22875420 in words is "twenty-two million, eight hundred seventy-five thousand, four hundred twenty".