1023913800 has 864 divisors, whose sum is σ = 4630953600. Its totient is φ = 200309760.

The previous prime is 1023913783. The next prime is 1023913811. The reversal of 1023913800 is 83193201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 21785377 + ... + 21785423.

It is an arithmetic number, because the mean of its divisors is an integer number (5359900).

Almost surely, 2^1023913800 is an apocalyptic number.

1023913800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023913800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315476800).

1023913800 is an abundant number, since it is smaller than the sum of its proper divisors (3607039800).

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

1023913800 is a wasteful number, since it uses less digits than its factorization.

1023913800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1023913800 is about 31998.6530966539. The cubic root of 1023913800 is about 1007.9085565195.

The spelling of 1023913800 in words is "one billion, twenty-three million, nine hundred thirteen thousand, eight hundred".