23678940 has 48 divisors (see below), whose sum is σ = 69793920. Its totient is φ = 5981760.

The previous prime is 23678923. The next prime is 23678951. The reversal of 23678940 is 4987632.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9246 + ... + 11525.

It is an arithmetic number, because the mean of its divisors is an integer number (1454040).

Almost surely, 2^23678940 is an apocalyptic number.

23678940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23678940 is an abundant number, since it is smaller than the sum of its proper divisors (46114980).

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

23678940 is a wasteful number, since it uses less digits than its factorization.

23678940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20802 (or 20800 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 23678940 is about 4866.1011086906. The cubic root of 23678940 is about 287.1578892228.

The spelling of 23678940 in words is "twenty-three million, six hundred seventy-eight thousand, nine hundred forty".