23689340 has 24 divisors (see below), whose sum is σ = 50264592. Its totient is φ = 9377280.

The previous prime is 23689331. The next prime is 23689373. The reversal of 23689340 is 4398632.

It is a happy number.

It is a super-2 number, since 2×23689340² = 1122369659271200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23689340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4166 + ... + 8045.

It is an arithmetic number, because the mean of its divisors is an integer number (2094358).

Almost surely, 2^23689340 is an apocalyptic number.

23689340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23689340 is an abundant number, since it is smaller than the sum of its proper divisors (26575252).

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

23689340 is a wasteful number, since it uses less digits than its factorization.

23689340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12317 (or 12315 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 23689340 is about 4867.1696087151. The cubic root of 23689340 is about 287.1999238315.

The spelling of 23689340 in words is "twenty-three million, six hundred eighty-nine thousand, three hundred forty".