23817340 has 24 divisors (see below), whose sum is σ = 52959312. Its totient is φ = 8966400.

The previous prime is 23817337. The next prime is 23817341. The reversal of 23817340 is 4371832.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23817299 and 23817308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23817341) 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, 34686 + ... + 35365.

It is an arithmetic number, because the mean of its divisors is an integer number (2206638).

Almost surely, 2^23817340 is an apocalyptic number.

23817340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23817340 is an abundant number, since it is smaller than the sum of its proper divisors (29141972).

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

23817340 is a wasteful number, since it uses less digits than its factorization.

23817340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70077 (or 70075 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 23817340 is about 4880.3012202117. The cubic root of 23817340 is about 287.7162682760.

It can be divided in two parts, 238 and 17340, that added together give a triangular number (17578 = T₁₈₇).

The spelling of 23817340 in words is "twenty-three million, eight hundred seventeen thousand, three hundred forty".