22400871 has 8 divisors (see below), whose sum is σ = 29921904. Its totient is φ = 14906880.

The previous prime is 22400863. The next prime is 22400881. The reversal of 22400871 is 17800422.

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

It is not a de Polignac number, because 22400871 - 2³ = 22400863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4740 + ... + 8201.

It is an arithmetic number, because the mean of its divisors is an integer number (3740238).

Almost surely, 2^22400871 is an apocalyptic number.

22400871 is a deficient number, since it is larger than the sum of its proper divisors (7521033).

22400871 is a wasteful number, since it uses less digits than its factorization.

22400871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13521.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 22400871 is about 4732.9558417547. The cubic root of 22400871 is about 281.8956029240.

The spelling of 22400871 in words is "twenty-two million, four hundred thousand, eight hundred seventy-one".