22166403 has 8 divisors (see below), whose sum is σ = 33777408. Its totient is φ = 12666504.

The previous prime is 22166383. The next prime is 22166447. The reversal of 22166403 is 30466122.

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

It is not a de Polignac number, because 22166403 - 2¹² = 22162307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22166603) 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, 527751 + ... + 527792.

It is an arithmetic number, because the mean of its divisors is an integer number (4222176).

Almost surely, 2^22166403 is an apocalyptic number.

22166403 is a deficient number, since it is larger than the sum of its proper divisors (11611005).

22166403 is a wasteful number, since it uses less digits than its factorization.

22166403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055553.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 22166403 is about 4708.1209627621. The cubic root of 22166403 is about 280.9086256182.

The spelling of 22166403 in words is "twenty-two million, one hundred sixty-six thousand, four hundred three".