3938830 has 16 divisors (see below), whose sum is σ = 8102880. Its totient is φ = 1350432.

The previous prime is 3938827. The next prime is 3938839. The reversal of 3938830 is 388393.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28065 + ... + 28204.

It is an arithmetic number, because the mean of its divisors is an integer number (506430).

Almost surely, 2^3938830 is an apocalyptic number.

3938830 is an abundant number, since it is smaller than the sum of its proper divisors (4164050).

3938830 is a wasteful number, since it uses less digits than its factorization.

3938830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56283.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 3938830 is about 1984.6485835029. The cubic root of 3938830 is about 157.9267673225.

The spelling of 3938830 in words is "three million, nine hundred thirty-eight thousand, eight hundred thirty".