22399071 has 8 divisors (see below), whose sum is σ = 29890224. Its totient is φ = 14920320.

The previous prime is 22399067. The next prime is 22399099. The reversal of 22399071 is 17099322.

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

It is not a de Polignac number, because 22399071 - 2² = 22399067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22399471) 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, 2631 + ... + 7191.

It is an arithmetic number, because the mean of its divisors is an integer number (3736278).

Almost surely, 2^22399071 is an apocalyptic number.

22399071 is a deficient number, since it is larger than the sum of its proper divisors (7491153).

22399071 is a wasteful number, since it uses less digits than its factorization.

22399071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6201.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 22399071 is about 4732.7656819243. The cubic root of 22399071 is about 281.8880522403. Note that the first 3 decimals are identical.

The spelling of 22399071 in words is "twenty-two million, three hundred ninety-nine thousand, seventy-one".