22051898 has 8 divisors (see below), whose sum is σ = 36084960. Its totient is φ = 10023580.

The previous prime is 22051879. The next prime is 22051903. The reversal of 22051898 is 89815022.

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

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, 501158 + ... + 501201.

It is an arithmetic number, because the mean of its divisors is an integer number (4510620).

Almost surely, 2^22051898 is an apocalyptic number.

22051898 is a deficient number, since it is larger than the sum of its proper divisors (14033062).

22051898 is a wasteful number, since it uses less digits than its factorization.

22051898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002372.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 22051898 is about 4695.9448463541. The cubic root of 22051898 is about 280.4240937292.

The spelling of 22051898 in words is "twenty-two million, fifty-one thousand, eight hundred ninety-eight".