23102478 has 48 divisors (see below), whose sum is σ = 57578976. Its totient is φ = 6557760.

The previous prime is 23102449. The next prime is 23102483. The reversal of 23102478 is 87420132.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22300 + ... + 23312.

It is an arithmetic number, because the mean of its divisors is an integer number (1199562).

Almost surely, 2^23102478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23102478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28789488).

23102478 is an abundant number, since it is smaller than the sum of its proper divisors (34476498).

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

23102478 is a wasteful number, since it uses less digits than its factorization.

23102478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 23102478 is about 4806.5037189209. The cubic root of 23102478 is about 284.8084400641.

The spelling of 23102478 in words is "twenty-three million, one hundred two thousand, four hundred seventy-eight".