22100390 has 16 divisors (see below), whose sum is σ = 42841008. Its totient is φ = 8160096.

The previous prime is 22100347. The next prime is 22100431. The reversal of 22100390 is 9300122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84872 + ... + 85131.

It is an arithmetic number, because the mean of its divisors is an integer number (2677563).

Almost surely, 2^22100390 is an apocalyptic number.

22100390 is a deficient number, since it is larger than the sum of its proper divisors (20740618).

22100390 is a wasteful number, since it uses less digits than its factorization.

22100390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170023.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 22100390 is about 4701.1051892082. The cubic root of 22100390 is about 280.6294935814.

The spelling of 22100390 in words is "twenty-two million, one hundred thousand, three hundred ninety".