3984493390 has 16 divisors (see below), whose sum is σ = 7202873808. Its totient is φ = 1586956096.

The previous prime is 3984493369. The next prime is 3984493397. The reversal of 3984493390 is 933944893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984493397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852712 + ... + 857371.

It is an arithmetic number, because the mean of its divisors is an integer number (450179613).

Almost surely, 2^3984493390 is an apocalyptic number.

3984493390 is a deficient number, since it is larger than the sum of its proper divisors (3218380418).

3984493390 is a wasteful number, since it uses less digits than its factorization.

3984493390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710323.

The product of its (nonzero) digits is 2519424, while the sum is 52.

The square root of 3984493390 is about 63122.8436463377. The cubic root of 3984493390 is about 1585.3471281421.

The spelling of 3984493390 in words is "three billion, nine hundred eighty-four million, four hundred ninety-three thousand, three hundred ninety".