22500345 has 32 divisors (see below), whose sum is σ = 41322240. Its totient is φ = 10241280.

The previous prime is 22500323. The next prime is 22500353. The reversal of 22500345 is 54300522.

It is not a de Polignac number, because 22500345 - 2⁸ = 22500089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43951 + ... + 44459.

It is an arithmetic number, because the mean of its divisors is an integer number (1291320).

Almost surely, 2^22500345 is an apocalyptic number.

It is an amenable number.

22500345 is a deficient number, since it is larger than the sum of its proper divisors (18821895).

22500345 is a wasteful number, since it uses less digits than its factorization.

22500345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 22500345 is about 4743.4528563063. The cubic root of 22500345 is about 282.3122515788.

Adding to 22500345 its reverse (54300522), we get a palindrome (76800867).

The spelling of 22500345 in words is "twenty-two million, five hundred thousand, three hundred forty-five".