23481090 has 56 divisors (see below), whose sum is σ = 63389628. Its totient is φ = 6259680.

The previous prime is 23481089. The next prime is 23481103. The reversal of 23481090 is 9018432.

It can be written as a sum of positive squares in 2 ways, for example, as 23357889 + 123201 = 4833^2 + 351^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5680 + ... + 8900.

Almost surely, 2^23481090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23481090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31694814).

23481090 is an abundant number, since it is smaller than the sum of its proper divisors (39908538).

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

23481090 is an equidigital number, since it uses as much as digits as its factorization.

23481090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246 (or 3231 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 23481090 is about 4845.7290473158. The cubic root of 23481090 is about 286.3558662085.

The spelling of 23481090 in words is "twenty-three million, four hundred eighty-one thousand, ninety".