23102340 has 24 divisors (see below), whose sum is σ = 64686720. Its totient is φ = 6160608.

The previous prime is 23102267. The next prime is 23102341. The reversal of 23102340 is 4320132.

It is a super-2 number, since 2×23102340² = 1067436226951200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (23102341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192460 + ... + 192579.

It is an arithmetic number, because the mean of its divisors is an integer number (2695280).

Almost surely, 2^23102340 is an apocalyptic number.

23102340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23102340 is an abundant number, since it is smaller than the sum of its proper divisors (41584380).

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

23102340 is a wasteful number, since it uses less digits than its factorization.

23102340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385051 (or 385049 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23102340 is about 4806.4893633503. The cubic root of 23102340 is about 284.8078729728.

Adding to 23102340 its reverse (4320132), we get a palindrome (27422472).

The spelling of 23102340 in words is "twenty-three million, one hundred two thousand, three hundred forty".