22253538 has 8 divisors (see below), whose sum is σ = 44507088. Its totient is φ = 7417844.

The previous prime is 22253521. The next prime is 22253551. The reversal of 22253538 is 83535222.

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

22253538 is an admirable number.

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, 1854456 + ... + 1854467.

It is an arithmetic number, because the mean of its divisors is an integer number (5563386).

Almost surely, 2^22253538 is an apocalyptic number.

22253538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22253538 is a wasteful number, since it uses less digits than its factorization.

22253538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708928.

The product of its digits is 14400, while the sum is 30.

The square root of 22253538 is about 4717.3655783710. The cubic root of 22253538 is about 281.2762235302.

It can be divided in two parts, 22253 and 538, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 22253538 in words is "twenty-two million, two hundred fifty-three thousand, five hundred thirty-eight".