23490180 has 144 divisors (see below), whose sum is σ = 82677504. Its totient is φ = 5287680.

The previous prime is 23490167. The next prime is 23490191. The reversal of 23490180 is 8109432.

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, 129690 + ... + 129870.

Almost surely, 2^23490180 is an apocalyptic number.

23490180 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 23490180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41338752).

23490180 is an abundant number, since it is smaller than the sum of its proper divisors (59187324).

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

23490180 is a wasteful number, since it uses less digits than its factorization.

23490180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 301 counting only the distinct ones).

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

The square root of 23490180 is about 4846.6668959193. Note that the first 3 decimals coincide. The cubic root of 23490180 is about 286.3928128040.

The spelling of 23490180 in words is "twenty-three million, four hundred ninety thousand, one hundred eighty".