22878475 has 6 divisors (see below), whose sum is σ = 28369340. Its totient is φ = 18302760.

The previous prime is 22878467. The next prime is 22878487. The reversal of 22878475 is 57487822.

It is not a de Polignac number, because 22878475 - 2³ = 22878467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 457545 + ... + 457594.

Almost surely, 2^22878475 is an apocalyptic number.

22878475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22878475 is a deficient number, since it is larger than the sum of its proper divisors (5490865).

22878475 is an equidigital number, since it uses as much as digits as its factorization.

22878475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915149 (or 915144 counting only the distinct ones).

The product of its digits is 250880, while the sum is 43.

The square root of 22878475 is about 4783.1448859511. The cubic root of 22878475 is about 283.8849423168.

The spelling of 22878475 in words is "twenty-two million, eight hundred seventy-eight thousand, four hundred seventy-five".