23828155 has 24 divisors (see below), whose sum is σ = 31332528. Its totient is φ = 17387136.

The previous prime is 23828141. The next prime is 23828159. The reversal of 23828155 is 55182832.

It is not a de Polignac number, because 23828155 - 2⁷ = 23828027 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23828155.

It is not an unprimeable number, because it can be changed into a prime (23828159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137649 + ... + 137821.

It is an arithmetic number, because the mean of its divisors is an integer number (1305522).

Almost surely, 2^23828155 is an apocalyptic number.

23828155 is a deficient number, since it is larger than the sum of its proper divisors (7504373).

23828155 is a wasteful number, since it uses less digits than its factorization.

23828155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 354 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 23828155 is about 4881.4091203258. The cubic root of 23828155 is about 287.7598105101.

The spelling of 23828155 in words is "twenty-three million, eight hundred twenty-eight thousand, one hundred fifty-five".