3900620 has 24 divisors (see below), whose sum is σ = 8276688. Its totient is φ = 1544000.

The previous prime is 3900583. The next prime is 3900623. The reversal of 3900620 is 260093.

It is a happy number.

3900620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3900592 and 3900601.

It is not an unprimeable number, because it can be changed into a prime (3900623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055 + ... + 2985.

It is an arithmetic number, because the mean of its divisors is an integer number (344862).

Almost surely, 2^3900620 is an apocalyptic number.

It is an amenable number.

3900620 is an abundant number, since it is smaller than the sum of its proper divisors (4376068).

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

3900620 is a wasteful number, since it uses less digits than its factorization.

3900620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3900620 is about 1974.9987341768. The cubic root of 3900620 is about 157.4144323987.

The spelling of 3900620 in words is "three million, nine hundred thousand, six hundred twenty".