22928730 has 32 divisors (see below), whose sum is σ = 60032448. Its totient is φ = 5558400.

The previous prime is 22928729. The next prime is 22928771. The reversal of 22928730 is 3782922.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 22928691 and 22928700.

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, 34411 + ... + 35070.

It is an arithmetic number, because the mean of its divisors is an integer number (1876014).

Almost surely, 2^22928730 is an apocalyptic number.

22928730 is an abundant number, since it is smaller than the sum of its proper divisors (37103718).

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

22928730 is a wasteful number, since it uses less digits than its factorization.

22928730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69502.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 22928730 is about 4788.3953470865. The cubic root of 22928730 is about 284.0926514473.

The spelling of 22928730 in words is "twenty-two million, nine hundred twenty-eight thousand, seven hundred thirty".