23266381 has 8 divisors (see below), whose sum is σ = 24175800. Its totient is φ = 22364160.

The previous prime is 23266379. The next prime is 23266391. The reversal of 23266381 is 18366232.

It can be written as a sum of positive squares in 4 ways, for example, as 4990756 + 18275625 = 2234^2 + 4275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23266381 - 2¹ = 23266379 is a prime.

It is a super-2 number, since 2×23266381² = 1082648969674322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23266351) 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, 5325 + ... + 8653.

It is an arithmetic number, because the mean of its divisors is an integer number (3021975).

Almost surely, 2^23266381 is an apocalyptic number.

It is an amenable number.

23266381 is a deficient number, since it is larger than the sum of its proper divisors (909419).

23266381 is a wasteful number, since it uses less digits than its factorization.

23266381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599.

The product of its digits is 10368, while the sum is 31.

The square root of 23266381 is about 4823.5237119765. The cubic root of 23266381 is about 285.4803881335.

The spelling of 23266381 in words is "twenty-three million, two hundred sixty-six thousand, three hundred eighty-one".