22828040 has 32 divisors (see below), whose sum is σ = 51646680. Its totient is φ = 9080832.

The previous prime is 22828037. The next prime is 22828051. The reversal of 22828040 is 4082822.

It can be written as a sum of positive squares in 4 ways, for example, as 11792356 + 11035684 = 3434^2 + 3322^2 .

It is a super-2 number, since 2×22828040² = 1042238820483200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6242 + ... + 9198.

Almost surely, 2^22828040 is an apocalyptic number.

22828040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22828040 is an abundant number, since it is smaller than the sum of its proper divisors (28818640).

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

22828040 is a wasteful number, since it uses less digits than its factorization.

22828040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161 (or 3157 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 22828040 is about 4777.8698182349. The cubic root of 22828040 is about 283.6761831958.

The spelling of 22828040 in words is "twenty-two million, eight hundred twenty-eight thousand, forty".