22731356 has 6 divisors (see below), whose sum is σ = 39779880. Its totient is φ = 11365676.

The previous prime is 22731341. The next prime is 22731367. The reversal of 22731356 is 65313722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2841416 + ... + 2841423.

It is an arithmetic number, because the mean of its divisors is an integer number (6629980).

Almost surely, 2^22731356 is an apocalyptic number.

It is an amenable number.

22731356 is a deficient number, since it is larger than the sum of its proper divisors (17048524).

22731356 is a wasteful number, since it uses less digits than its factorization.

22731356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682843 (or 5682841 counting only the distinct ones).

The product of its digits is 7560, while the sum is 29.

The square root of 22731356 is about 4767.7411842507. The cubic root of 22731356 is about 283.2751302207.

The spelling of 22731356 in words is "twenty-two million, seven hundred thirty-one thousand, three hundred fifty-six".