22670928 has 240 divisors, whose sum is σ = 81244800. Its totient is φ = 6096384.

The previous prime is 22670861. The next prime is 22670941. The reversal of 22670928 is 82907622.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22670892 and 22670901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1333576 + ... + 1333592.

It is an arithmetic number, because the mean of its divisors is an integer number (338520).

Almost surely, 2^22670928 is an apocalyptic number.

22670928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22670928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40622400).

22670928 is an abundant number, since it is smaller than the sum of its proper divisors (58573872).

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

22670928 is an equidigital number, since it uses as much as digits as its factorization.

22670928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 22670928 is about 4761.3997941782. The cubic root of 22670928 is about 283.0238922338.

The spelling of 22670928 in words is "twenty-two million, six hundred seventy thousand, nine hundred twenty-eight".