22729958 has 4 divisors (see below), whose sum is σ = 34094940. Its totient is φ = 11364978.

The previous prime is 22729943. The next prime is 22729961. The reversal of 22729958 is 85992722.

It is a semiprime because it is the product of two primes.

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, 5682488 + ... + 5682491.

It is an arithmetic number, because the mean of its divisors is an integer number (8523735).

Almost surely, 2^22729958 is an apocalyptic number.

22729958 is a deficient number, since it is larger than the sum of its proper divisors (11364982).

22729958 is a wasteful number, since it uses less digits than its factorization.

22729958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11364981.

The product of its digits is 181440, while the sum is 44.

The square root of 22729958 is about 4767.5945716892. The cubic root of 22729958 is about 283.2693228717.

The spelling of 22729958 in words is "twenty-two million, seven hundred twenty-nine thousand, nine hundred fifty-eight".