23920260 has 144 divisors (see below), whose sum is σ = 83131776. Its totient is φ = 5031936.

The previous prime is 23920229. The next prime is 23920277. The reversal of 23920260 is 6202932.

23920260 = T₄₁₉ + T₄₂₀ + ... + T₆₀₀.

It is a self number, because there is not a number n which added to its sum of digits gives 23920260.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70812 + ... + 71148.

It is an arithmetic number, because the mean of its divisors is an integer number (577304).

Almost surely, 2^23920260 is an apocalyptic number.

23920260 is a gapful number since it is divisible by the number (20) 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 23920260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41565888).

23920260 is an abundant number, since it is smaller than the sum of its proper divisors (59211516).

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

23920260 is a wasteful number, since it uses less digits than its factorization.

23920260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 23920260 is about 4890.8342846594. The cubic root of 23920260 is about 288.1301013271.

The spelling of 23920260 in words is "twenty-three million, nine hundred twenty thousand, two hundred sixty".