22153974 has 8 divisors (see below), whose sum is σ = 44307960. Its totient is φ = 7384656.

The previous prime is 22153973. The next prime is 22153993. The reversal of 22153974 is 47935122.

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

22153974 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22153973) 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, 1846159 + ... + 1846170.

It is an arithmetic number, because the mean of its divisors is an integer number (5538495).

Almost surely, 2^22153974 is an apocalyptic number.

22153974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22153974 is a wasteful number, since it uses less digits than its factorization.

22153974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692334.

The product of its digits is 15120, while the sum is 33.

The square root of 22153974 is about 4706.8008243392. The cubic root of 22153974 is about 280.8561127218.

The spelling of 22153974 in words is "twenty-two million, one hundred fifty-three thousand, nine hundred seventy-four".