1016931840 has 160 divisors (see below), whose sum is σ = 3442681440. Its totient is φ = 255197184.

The previous prime is 1016931827. The next prime is 1016931859. The reversal of 1016931840 is 481396101.

It is a tau number, because it is divible by the number of its divisors (160).

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, 126666 + ... + 134454.

It is an arithmetic number, because the mean of its divisors is an integer number (21516759).

Almost surely, 2^1016931840 is an apocalyptic number.

1016931840 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 1016931840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1721340720).

1016931840 is an abundant number, since it is smaller than the sum of its proper divisors (2425749600).

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

1016931840 is an equidigital number, since it uses as much as digits as its factorization.

1016931840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832 (or 7816 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1016931840 is about 31889.3687613913. The cubic root of 1016931840 is about 1005.6123888302.

The spelling of 1016931840 in words is "one billion, sixteen million, nine hundred thirty-one thousand, eight hundred forty".