23666730 has 16 divisors (see below), whose sum is σ = 56800224. Its totient is φ = 6311120.

The previous prime is 23666711. The next prime is 23666749. The reversal of 23666730 is 3766632.

It is an interprime number because it is at equal distance from previous prime (23666711) and next prime (23666749).

It is a super-2 number, since 2×23666730² = 1120228217785800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23666691 and 23666700.

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, 394416 + ... + 394475.

It is an arithmetic number, because the mean of its divisors is an integer number (3550014).

Almost surely, 2^23666730 is an apocalyptic number.

23666730 is an abundant number, since it is smaller than the sum of its proper divisors (33133494).

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

23666730 is a wasteful number, since it uses less digits than its factorization.

23666730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788901.

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 23666730 is about 4864.8463490639. The cubic root of 23666730 is about 287.1085232651.

It can be divided in two parts, 236 and 66730, that added together give a palindrome (66966).

The spelling of 23666730 in words is "twenty-three million, six hundred sixty-six thousand, seven hundred thirty".