831350940 has 96 divisors (see below), whose sum is σ = 2664990720. Its totient is φ = 189689856.

The previous prime is 831350921. The next prime is 831350969. The reversal of 831350940 is 49053138.

It is a super-2 number, since 2×831350940² = 1382288770877767200, 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 31 ways as a sum of consecutive naturals, for example, 300604 + ... + 303356.

It is an arithmetic number, because the mean of its divisors is an integer number (27760320).

Almost surely, 2^831350940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 831350940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332495360).

831350940 is an abundant number, since it is smaller than the sum of its proper divisors (1833639780).

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

831350940 is a wasteful number, since it uses less digits than its factorization.

831350940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491 (or 3489 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 831350940 is about 28833.1569551445. The cubic root of 831350940 is about 940.2892349719.

The spelling of 831350940 in words is "eight hundred thirty-one million, three hundred fifty thousand, nine hundred forty".