8031940 has 48 divisors (see below), whose sum is σ = 19498752. Its totient is φ = 2722176.

The previous prime is 8031937. The next prime is 8031943. The reversal of 8031940 is 491308.

It is an interprime number because it is at equal distance from previous prime (8031937) and next prime (8031943).

It is not an unprimeable number, because it can be changed into a prime (8031943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14142 + ... + 14698.

It is an arithmetic number, because the mean of its divisors is an integer number (406224).

Almost surely, 2^8031940 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 8031940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9749376).

8031940 is an abundant number, since it is smaller than the sum of its proper divisors (11466812).

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

8031940 is a wasteful number, since it uses less digits than its factorization.

8031940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 8031940 is about 2834.0677479552. The cubic root of 8031940 is about 200.2658132268.

The spelling of 8031940 in words is "eight million, thirty-one thousand, nine hundred forty".