21886094 has 8 divisors (see below), whose sum is σ = 33154488. Its totient is φ = 10834600.

The previous prime is 21886063. The next prime is 21886103. The reversal of 21886094 is 49068812.

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

It is a super-2 number, since 2×21886094² = 958002221153672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53972 + ... + 54375.

It is an arithmetic number, because the mean of its divisors is an integer number (4144311).

Almost surely, 2^21886094 is an apocalyptic number.

21886094 is a deficient number, since it is larger than the sum of its proper divisors (11268394).

21886094 is a wasteful number, since it uses less digits than its factorization.

21886094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108450.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 21886094 is about 4678.2575816216. The cubic root of 21886094 is about 279.7195065210.

The spelling of 21886094 in words is "twenty-one million, eight hundred eighty-six thousand, ninety-four".