23955405 has 16 divisors (see below), whose sum is σ = 39565824. Its totient is φ = 12363840.

The previous prime is 23955403. The next prime is 23955419. The reversal of 23955405 is 50455932.

It is not a de Polignac number, because 23955405 - 2¹ = 23955403 is a prime.

It is a super-2 number, since 2×23955405² = 1147722857428050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23955401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25294 + ... + 26223.

It is an arithmetic number, because the mean of its divisors is an integer number (2472864).

Almost surely, 2^23955405 is an apocalyptic number.

It is an amenable number.

23955405 is a deficient number, since it is larger than the sum of its proper divisors (15610419).

23955405 is a wasteful number, since it uses less digits than its factorization.

23955405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51556.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 23955405 is about 4894.4259111769. The cubic root of 23955405 is about 288.2711446249.

The spelling of 23955405 in words is "twenty-three million, nine hundred fifty-five thousand, four hundred five".