3920868 has 36 divisors (see below), whose sum is σ = 11327680. Its totient is φ = 1120176.

The previous prime is 3920867. The next prime is 3920899. The reversal of 3920868 is 8680293.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3920867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7528 + ... + 8031.

Almost surely, 2^3920868 is an apocalyptic number.

It is an amenable number.

3920868 is an abundant number, since it is smaller than the sum of its proper divisors (7406812).

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

3920868 is a wasteful number, since it uses less digits than its factorization.

3920868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15576 (or 15571 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 3920868 is about 1980.1181782914. The cubic root of 3920868 is about 157.6863402980.

The spelling of 3920868 in words is "three million, nine hundred twenty thousand, eight hundred sixty-eight".