23685340 has 24 divisors (see below), whose sum is σ = 56845152. Its totient is φ = 8120640.

The previous prime is 23685317. The next prime is 23685341. The reversal of 23685340 is 4358632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23685341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84451 + ... + 84730.

It is an arithmetic number, because the mean of its divisors is an integer number (2368548).

Almost surely, 2^23685340 is an apocalyptic number.

23685340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23685340 is an abundant number, since it is smaller than the sum of its proper divisors (33159812).

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

23685340 is a wasteful number, since it uses less digits than its factorization.

23685340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169197 (or 169195 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 23685340 is about 4866.7586749293. The cubic root of 23685340 is about 287.1837581305.

It can be divided in two parts, 23685 and 340, that added together give a square (24025 = 155²).

The spelling of 23685340 in words is "twenty-three million, six hundred eighty-five thousand, three hundred forty".