3869390 has 32 divisors (see below), whose sum is σ = 8031744. Its totient is φ = 1314720.

The previous prime is 3869351. The next prime is 3869399. The reversal of 3869390 is 939683.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11525 + ... + 11855.

It is an arithmetic number, because the mean of its divisors is an integer number (250992).

Almost surely, 2^3869390 is an apocalyptic number.

3869390 is an abundant number, since it is smaller than the sum of its proper divisors (4162354).

3869390 is a wasteful number, since it uses less digits than its factorization.

3869390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 3869390 is about 1967.0765109675. The cubic root of 3869390 is about 156.9931975361.

It can be divided in two parts, 38693 and 90, that added together give a palindrome (38783).

The spelling of 3869390 in words is "three million, eight hundred sixty-nine thousand, three hundred ninety".