3920343492 has 96 divisors (see below), whose sum is σ = 10391449600. Its totient is φ = 1140365952.

The previous prime is 3920343457. The next prime is 3920343499. The reversal of 3920343492 is 2943430293.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 3920343492.

It is not an unprimeable number, because it can be changed into a prime (3920343499) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1798059 + ... + 1800237.

Almost surely, 2^3920343492 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 3920343492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5195724800).

3920343492 is an abundant number, since it is smaller than the sum of its proper divisors (6471106108).

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

3920343492 is a wasteful number, since it uses less digits than its factorization.

3920343492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825 (or 2823 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 39.

The square root of 3920343492 is about 62612.6464222684. The cubic root of 3920343492 is about 1576.7930856970.

The spelling of 3920343492 in words is "three billion, nine hundred twenty million, three hundred forty-three thousand, four hundred ninety-two".