23693140 has 24 divisors (see below), whose sum is σ = 49859712. Its totient is φ = 9457440.

The previous prime is 23693119. The next prime is 23693141. The reversal of 23693140 is 4139632.

It is a super-2 number, since 2×23693140² = 1122729766119200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23693099 and 23693108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23693141) 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, 12025 + ... + 13855.

It is an arithmetic number, because the mean of its divisors is an integer number (2077488).

Almost surely, 2^23693140 is an apocalyptic number.

23693140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23693140 is an abundant number, since it is smaller than the sum of its proper divisors (26166572).

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

23693140 is a wasteful number, since it uses less digits than its factorization.

23693140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487 (or 2485 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 23693140 is about 4867.5599636779. The cubic root of 23693140 is about 287.2152795620.

The spelling of 23693140 in words is "twenty-three million, six hundred ninety-three thousand, one hundred forty".