23253381 has 6 divisors (see below), whose sum is σ = 33588230. Its totient is φ = 15502248.

The previous prime is 23253371. The next prime is 23253409. The reversal of 23253381 is 18335232.

23253381 is a `hidden beast` number, since 2 + 325 + 338 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19980900 + 3272481 = 4470^2 + 1809^2 .

It is not a de Polignac number, because 23253381 - 2⁹ = 23252869 is a prime.

It is a super-2 number, since 2×23253381² = 1081439455862322, 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 (23253311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1291846 + ... + 1291863.

Almost surely, 2^23253381 is an apocalyptic number.

It is an amenable number.

23253381 is a deficient number, since it is larger than the sum of its proper divisors (10334849).

23253381 is a wasteful number, since it uses less digits than its factorization.

23253381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583715 (or 2583712 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 23253381 is about 4822.1759611196. The cubic root of 23253381 is about 285.4272078749.

The spelling of 23253381 in words is "twenty-three million, two hundred fifty-three thousand, three hundred eighty-one".