1078505800 has 48 divisors (see below), whose sum is σ = 2522985840. Its totient is φ = 428742720.

The previous prime is 1078505777. The next prime is 1078505807. The reversal of 1078505800 is 85058701.

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

It is not an unprimeable number, because it can be changed into a prime (1078505807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16059 + ... + 49141.

It is an arithmetic number, because the mean of its divisors is an integer number (52562205).

Almost surely, 2^1078505800 is an apocalyptic number.

1078505800 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 1078505800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261492920).

1078505800 is an abundant number, since it is smaller than the sum of its proper divisors (1444480040).

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

1078505800 is a wasteful number, since it uses less digits than its factorization.

1078505800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33262 (or 33253 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 1078505800 is about 32840.6120527617. The cubic root of 1078505800 is about 1025.5121929534.

The spelling of 1078505800 in words is "one billion, seventy-eight million, five hundred five thousand, eight hundred".