22345689 has 16 divisors (see below), whose sum is σ = 30945600. Its totient is φ = 14325696.

The previous prime is 22345657. The next prime is 22345693. The reversal of 22345689 is 98654322.

It is a happy number.

It is not a de Polignac number, because 22345689 - 2⁵ = 22345657 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22345649) 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, 36147 + ... + 36759.

It is an arithmetic number, because the mean of its divisors is an integer number (1934100).

Almost surely, 2^22345689 is an apocalyptic number.

22345689 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22345689 is a deficient number, since it is larger than the sum of its proper divisors (8599911).

22345689 is a wasteful number, since it uses less digits than its factorization.

22345689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its digits is 103680, while the sum is 39.

The square root of 22345689 is about 4727.1226977941. The cubic root of 22345689 is about 281.6639400006.

The spelling of 22345689 in words is "twenty-two million, three hundred forty-five thousand, six hundred eighty-nine".