3900045 has 8 divisors (see below), whose sum is σ = 6240096. Its totient is φ = 2080016.

The previous prime is 3899989. The next prime is 3900067. The reversal of 3900045 is 5400093.

3900045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3900045 - 2⁶ = 3899981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3899994 and 3900030.

It is a congruent number.

It is an unprimeable number.

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, 129987 + ... + 130016.

It is an arithmetic number, because the mean of its divisors is an integer number (780012).

Almost surely, 2^3900045 is an apocalyptic number.

It is an amenable number.

3900045 is a deficient number, since it is larger than the sum of its proper divisors (2340051).

3900045 is a wasteful number, since it uses less digits than its factorization.

3900045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260011.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 3900045 is about 1974.8531590982. The cubic root of 3900045 is about 157.4066970689.

The spelling of 3900045 in words is "three million, nine hundred thousand, forty-five".