22945478 has 8 divisors (see below), whose sum is σ = 36442872. Its totient is φ = 10797856.

The previous prime is 22945477. The next prime is 22945493. The reversal of 22945478 is 87454922.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22945477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337400 + ... + 337467.

It is an arithmetic number, because the mean of its divisors is an integer number (4555359).

Almost surely, 2^22945478 is an apocalyptic number.

22945478 is a deficient number, since it is larger than the sum of its proper divisors (13497394).

22945478 is a wasteful number, since it uses less digits than its factorization.

22945478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674886.

The product of its digits is 161280, while the sum is 41.

The square root of 22945478 is about 4790.1438391764. The cubic root of 22945478 is about 284.1618052371.

The spelling of 22945478 in words is "twenty-two million, nine hundred forty-five thousand, four hundred seventy-eight".