3927421340 has 36 divisors (see below), whose sum is σ = 8443340136. Its totient is φ = 1533716352.

The previous prime is 3927421321. The next prime is 3927421357. The reversal of 3927421340 is 431247293.

It is a self number, because there is not a number n which added to its sum of digits gives 3927421340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1836752 + ... + 1838888.

It is an arithmetic number, because the mean of its divisors is an integer number (234537226).

Almost surely, 2^3927421340 is an apocalyptic number.

It is an amenable number.

3927421340 is an abundant number, since it is smaller than the sum of its proper divisors (4515918796).

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

3927421340 is an equidigital number, since it uses as much as digits as its factorization.

3927421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 3927421340 is about 62669.1418482813. The cubic root of 3927421340 is about 1577.7414373072.

The spelling of 3927421340 in words is "three billion, nine hundred twenty-seven million, four hundred twenty-one thousand, three hundred forty".