22897732 has 24 divisors (see below), whose sum is σ = 47077632. Its totient is φ = 9607200.

The previous prime is 22897727. The next prime is 22897757. The reversal of 22897732 is 23779822.

It is a super-2 number, since 2×22897732² = 1048612261487648, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 19444 + ... + 20587.

It is an arithmetic number, because the mean of its divisors is an integer number (1961568).

Almost surely, 2^22897732 is an apocalyptic number.

22897732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22897732 is an abundant number, since it is smaller than the sum of its proper divisors (24179900).

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

22897732 is a wasteful number, since it uses less digits than its factorization.

22897732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40059 (or 40057 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 22897732 is about 4785.1574686733. The cubic root of 22897732 is about 283.9645694080.

The spelling of 22897732 in words is "twenty-two million, eight hundred ninety-seven thousand, seven hundred thirty-two".