22146974 has 4 divisors (see below), whose sum is σ = 33220464. Its totient is φ = 11073486.

The previous prime is 22146961. The next prime is 22146997. The reversal of 22146974 is 47964122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47964122 = 2 ⋅23982061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5536742 + ... + 5536745.

It is an arithmetic number, because the mean of its divisors is an integer number (8305116).

Almost surely, 2^22146974 is an apocalyptic number.

22146974 is a deficient number, since it is larger than the sum of its proper divisors (11073490).

22146974 is a wasteful number, since it uses less digits than its factorization.

22146974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11073489.

The product of its digits is 24192, while the sum is 35.

The square root of 22146974 is about 4706.0571607238. The cubic root of 22146974 is about 280.8265288664.

The spelling of 22146974 in words is "twenty-two million, one hundred forty-six thousand, nine hundred seventy-four".