831078480 has 80 divisors (see below), whose sum is σ = 2579727744. Its totient is φ = 221329920.

The previous prime is 831078467. The next prime is 831078517. The reversal of 831078480 is 84870138.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×831078480² = 1381382879838220800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230290 + ... + 233870.

Almost surely, 2^831078480 is an apocalyptic number.

831078480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

831078480 is an abundant number, since it is smaller than the sum of its proper divisors (1748649264).

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

831078480 is a wasteful number, since it uses less digits than its factorization.

831078480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564 (or 4558 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 831078480 is about 28828.4317991805. The cubic root of 831078480 is about 940.1865029065.

The spelling of 831078480 in words is "eight hundred thirty-one million, seventy-eight thousand, four hundred eighty".