22051884 has 12 divisors (see below), whose sum is σ = 51454424. Its totient is φ = 7350624.

The previous prime is 22051879. The next prime is 22051903. The reversal of 22051884 is 48815022.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918817 + ... + 918840.

Almost surely, 2^22051884 is an apocalyptic number.

It is an amenable number.

22051884 is an abundant number, since it is smaller than the sum of its proper divisors (29402540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22051884 is a wasteful number, since it uses less digits than its factorization.

22051884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837664 (or 1837662 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 22051884 is about 4695.9433557061. The cubic root of 22051884 is about 280.4240343853.

The spelling of 22051884 in words is "twenty-two million, fifty-one thousand, eight hundred eighty-four".