23189280 has 48 divisors (see below), whose sum is σ = 73047744. Its totient is φ = 6183680.

The previous prime is 23189279. The next prime is 23189293. The reversal of 23189280 is 8298132.

It is a tau number, because it is divible by the number of its divisors (48).

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, 23676 + ... + 24635.

It is an arithmetic number, because the mean of its divisors is an integer number (1521828).

Almost surely, 2^23189280 is an apocalyptic number.

23189280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23189280 is an abundant number, since it is smaller than the sum of its proper divisors (49858464).

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

23189280 is a wasteful number, since it uses less digits than its factorization.

23189280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48329 (or 48321 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 23189280 is about 4815.5248935085. The cubic root of 23189280 is about 285.1646939753.

The spelling of 23189280 in words is "twenty-three million, one hundred eighty-nine thousand, two hundred eighty".