23255040 has 96 divisors (see below), whose sum is σ = 74496240. Its totient is φ = 6193152.

The previous prime is 23255021. The next prime is 23255087. The reversal of 23255040 is 4055232.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 23254998 and 23255016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30342 + ... + 31098.

Almost surely, 2^23255040 is an apocalyptic number.

23255040 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 23255040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37248120).

23255040 is an abundant number, since it is smaller than the sum of its proper divisors (51241200).

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

23255040 is an equidigital number, since it uses as much as digits as its factorization.

23255040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 23255040 is about 4822.3479758309. The cubic root of 23255040 is about 285.4339955972.

The spelling of 23255040 in words is "twenty-three million, two hundred fifty-five thousand, forty".