22051928 has 8 divisors (see below), whose sum is σ = 41347380. Its totient is φ = 11025960.

The previous prime is 22051903. The next prime is 22051937. The reversal of 22051928 is 82915022.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22051928.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1378238 + ... + 1378253.

Almost surely, 2^22051928 is an apocalyptic number.

It is an amenable number.

22051928 is a deficient number, since it is larger than the sum of its proper divisors (19295452).

22051928 is a wasteful number, since it uses less digits than its factorization.

22051928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756497 (or 2756493 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 22051928 is about 4695.9480405984. The cubic root of 22051928 is about 280.4242208947.

The spelling of 22051928 in words is "twenty-two million, fifty-one thousand, nine hundred twenty-eight".