22831945 has 8 divisors (see below), whose sum is σ = 27428544. Its totient is φ = 18245424.

The previous prime is 22831943. The next prime is 22831973. The reversal of 22831945 is 54913822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22831945 - 2¹ = 22831943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22831945.

It is not an unprimeable number, because it can be changed into a prime (22831943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4012 + ... + 7858.

It is an arithmetic number, because the mean of its divisors is an integer number (3428568).

Almost surely, 2^22831945 is an apocalyptic number.

It is an amenable number.

22831945 is a deficient number, since it is larger than the sum of its proper divisors (4596599).

22831945 is a wasteful number, since it uses less digits than its factorization.

22831945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039.

The product of its digits is 17280, while the sum is 34.

The square root of 22831945 is about 4778.2784556784. The cubic root of 22831945 is about 283.6923576365.

The spelling of 22831945 in words is "twenty-two million, eight hundred thirty-one thousand, nine hundred forty-five".