22725830 has 16 divisors (see below), whose sum is σ = 41066784. Its totient is φ = 9054720.

The previous prime is 22725823. The next prime is 22725847. The reversal of 22725830 is 3852722.

It is a junction number, because it is equal to n+sod(n) for n = 22725793 and 22725802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691 + ... + 6950.

It is an arithmetic number, because the mean of its divisors is an integer number (2566674).

Almost surely, 2^22725830 is an apocalyptic number.

22725830 is a deficient number, since it is larger than the sum of its proper divisors (18340954).

22725830 is a wasteful number, since it uses less digits than its factorization.

22725830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8911.

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

The square root of 22725830 is about 4767.1616293136. The cubic root of 22725830 is about 283.2521736017.

The spelling of 22725830 in words is "twenty-two million, seven hundred twenty-five thousand, eight hundred thirty".