23671228 has 24 divisors (see below), whose sum is σ = 48871424. Its totient is φ = 9817200.

The previous prime is 23671211. The next prime is 23671243. The reversal of 23671228 is 82217632.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 23671228.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12768 + ... + 14503.

Almost surely, 2^23671228 is an apocalyptic number.

23671228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23671228 is an abundant number, since it is smaller than the sum of its proper divisors (25200196).

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

23671228 is a wasteful number, since it uses less digits than its factorization.

23671228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27313 (or 27311 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 23671228 is about 4865.3086233044. The cubic root of 23671228 is about 287.1267109958.

The spelling of 23671228 in words is "twenty-three million, six hundred seventy-one thousand, two hundred twenty-eight".