3869428 has 24 divisors (see below), whose sum is σ = 7140672. Its totient is φ = 1831104.

The previous prime is 3869417. The next prime is 3869461. The reversal of 3869428 is 8249683.

3869428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12451 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (297528).

Almost surely, 2^3869428 is an apocalyptic number.

It is an amenable number.

3869428 is a deficient number, since it is larger than the sum of its proper divisors (3271244).

3869428 is a wasteful number, since it uses less digits than its factorization.

3869428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 469 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 3869428 is about 1967.0861699478. The cubic root of 3869428 is about 156.9937114606.

The spelling of 3869428 in words is "three million, eight hundred sixty-nine thousand, four hundred twenty-eight".