23087340 has 72 divisors (see below), whose sum is σ = 71547840. Its totient is φ = 6023424.

The previous prime is 23087333. The next prime is 23087353. The reversal of 23087340 is 4378032.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7096 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (993720).

Almost surely, 2^23087340 is an apocalyptic number.

23087340 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 23087340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35773920).

23087340 is an abundant number, since it is smaller than the sum of its proper divisors (48460500).

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

23087340 is a wasteful number, since it uses less digits than its factorization.

23087340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2786 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 23087340 is about 4804.9287195545. The cubic root of 23087340 is about 284.7462191456.

The spelling of 23087340 in words is "twenty-three million, eighty-seven thousand, three hundred forty".