22156452 has 36 divisors (see below), whose sum is σ = 58443840. Its totient is φ = 7064112.

The previous prime is 22156439. The next prime is 22156469. The reversal of 22156452 is 25465122.

22156452 is a `hidden beast` number, since 2 + 2 + 15 + 645 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12552 + ... + 14207.

It is an arithmetic number, because the mean of its divisors is an integer number (1623440).

Almost surely, 2^22156452 is an apocalyptic number.

It is an amenable number.

22156452 is an abundant number, since it is smaller than the sum of its proper divisors (36287388).

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

22156452 is a wasteful number, since it uses less digits than its factorization.

22156452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26792 (or 26787 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 22156452 is about 4707.0640531015. The cubic root of 22156452 is about 280.8665839132.

The spelling of 22156452 in words is "twenty-two million, one hundred fifty-six thousand, four hundred fifty-two".