8251940 has 24 divisors (see below), whose sum is σ = 18083520. Its totient is φ = 3157088.

The previous prime is 8251939. The next prime is 8251949. The reversal of 8251940 is 491528.

It is not an unprimeable number, because it can be changed into a prime (8251949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8510 + ... + 9429.

It is an arithmetic number, because the mean of its divisors is an integer number (753480).

Almost surely, 2^8251940 is an apocalyptic number.

It is an amenable number.

8251940 is an abundant number, since it is smaller than the sum of its proper divisors (9831580).

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

8251940 is a wasteful number, since it uses less digits than its factorization.

8251940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17971 (or 17969 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 8251940 is about 2872.6190140706. The cubic root of 8251940 is about 202.0778381850.

The spelling of 8251940 in words is "eight million, two hundred fifty-one thousand, nine hundred forty".