22250428 has 6 divisors (see below), whose sum is σ = 38938256. Its totient is φ = 11125212.

The previous prime is 22250419. The next prime is 22250443. The reversal of 22250428 is 82405222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2781300 + ... + 2781307.

Almost surely, 2^22250428 is an apocalyptic number.

It is an amenable number.

22250428 is a deficient number, since it is larger than the sum of its proper divisors (16687828).

22250428 is a wasteful number, since it uses less digits than its factorization.

22250428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562611 (or 5562609 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 22250428 is about 4717.0359337194. The cubic root of 22250428 is about 281.2631198489.

The spelling of 22250428 in words is "twenty-two million, two hundred fifty thousand, four hundred twenty-eight".