22392945 has 24 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 11789856.

The previous prime is 22392911. The next prime is 22392967. The reversal of 22392945 is 54929322.

It is not a de Polignac number, because 22392945 - 2¹⁰ = 22391921 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 406 + ... + 6704.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 2^22392945 is an apocalyptic number.

It is an amenable number.

22392945 is a deficient number, since it is larger than the sum of its proper divisors (16919055).

22392945 is a wasteful number, since it uses less digits than its factorization.

22392945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389 (or 6386 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 22392945 is about 4732.1184473764. The cubic root of 22392945 is about 281.8623517152.

It can be divided in two parts, 2239 and 2945, that added together give a square (5184 = 72²).

The spelling of 22392945 in words is "twenty-two million, three hundred ninety-two thousand, nine hundred forty-five".