23154864 has 20 divisors (see below), whose sum is σ = 59816856. Its totient is φ = 7718272.

The previous prime is 23154853. The next prime is 23154869. The reversal of 23154864 is 46845132.

It is a super-2 number, since 2×23154864² = 1072295453716992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23154869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241149 + ... + 241244.

Almost surely, 2^23154864 is an apocalyptic number.

23154864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23154864 is an abundant number, since it is smaller than the sum of its proper divisors (36661992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23154864 is a wasteful number, since it uses less digits than its factorization.

23154864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482404 (or 482398 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 23154864 is about 4811.9501244298. The cubic root of 23154864 is about 285.0235499161.

Adding to 23154864 its reverse (46845132), we get a palindrome (69999996).

The spelling of 23154864 in words is "twenty-three million, one hundred fifty-four thousand, eight hundred sixty-four".