22677440 has 28 divisors (see below), whose sum is σ = 54001416. Its totient is φ = 9070848.

The previous prime is 22677437. The next prime is 22677451. The reversal of 22677440 is 4477622.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 22677397 and 22677406.

It is a congruent 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, 35114 + ... + 35753.

It is an arithmetic number, because the mean of its divisors is an integer number (1928622).

Almost surely, 2^22677440 is an apocalyptic number.

22677440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22677440 is an abundant number, since it is smaller than the sum of its proper divisors (31323976).

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

22677440 is an equidigital number, since it uses as much as digits as its factorization.

22677440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70884 (or 70874 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 22677440 is about 4762.0835775950. The cubic root of 22677440 is about 283.0509882449.

The spelling of 22677440 in words is "twenty-two million, six hundred seventy-seven thousand, four hundred forty".