23443980 has 48 divisors (see below), whose sum is σ = 75022080. Its totient is φ = 5358528.

The previous prime is 23443963. The next prime is 23443993. The reversal of 23443980 is 8934432.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27490 + ... + 28329.

It is an arithmetic number, because the mean of its divisors is an integer number (1562960).

Almost surely, 2^23443980 is an apocalyptic number.

23443980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23443980 is an abundant number, since it is smaller than the sum of its proper divisors (51578100).

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

23443980 is a wasteful number, since it uses less digits than its factorization.

23443980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55838 (or 55836 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 23443980 is about 4841.8983880292. The cubic root of 23443980 is about 286.2049324242.

The spelling of 23443980 in words is "twenty-three million, four hundred forty-three thousand, nine hundred eighty".