3928183940 has 24 divisors (see below), whose sum is σ = 8291068632. Its totient is φ = 1563296000.

The previous prime is 3928183939. The next prime is 3928183957. The reversal of 3928183940 is 493818293.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1437774724 + 2490409216 = 37918^2 + 49904^2 .

It is an unprimeable number.

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, 494561 + ... + 502440.

It is an arithmetic number, because the mean of its divisors is an integer number (345461193).

Almost surely, 2^3928183940 is an apocalyptic number.

It is an amenable number.

3928183940 is an abundant number, since it is smaller than the sum of its proper divisors (4362884692).

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

3928183940 is a wasteful number, since it uses less digits than its factorization.

3928183940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997207 (or 997205 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 3928183940 is about 62675.2258871079. The cubic root of 3928183940 is about 1577.8435490704.

The spelling of 3928183940 in words is "three billion, nine hundred twenty-eight million, one hundred eighty-three thousand, nine hundred forty".