23984145 has 12 divisors (see below), whose sum is σ = 41572596. Its totient is φ = 12791520.

The previous prime is 23984141. The next prime is 23984171. The reversal of 23984145 is 54148932.

23984145 is a `hidden beast` number, since 239 + 8 + 414 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18948609 + 5035536 = 4353^2 + 2244^2 .

It is not a de Polignac number, because 23984145 - 2² = 23984141 is a prime.

It is a super-2 number, since 2×23984145² = 1150478422762050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23984141) 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 11 ways as a sum of consecutive naturals, for example, 266446 + ... + 266535.

It is an arithmetic number, because the mean of its divisors is an integer number (3464383).

Almost surely, 2^23984145 is an apocalyptic number.

It is an amenable number.

23984145 is a deficient number, since it is larger than the sum of its proper divisors (17588451).

23984145 is a wasteful number, since it uses less digits than its factorization.

23984145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532992 (or 532989 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 23984145 is about 4897.3610240618. The cubic root of 23984145 is about 288.3863809941.

The spelling of 23984145 in words is "twenty-three million, nine hundred eighty-four thousand, one hundred forty-five".