3903138 has 12 divisors (see below), whose sum is σ = 8456838. Its totient is φ = 1301040.

The previous prime is 3903131. The next prime is 3903143. The reversal of 3903138 is 8313093.

It can be written as a sum of positive squares in only one way, i.e., 3697929 + 205209 = 1923^2 + 453^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3903131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108403 + ... + 108438.

Almost surely, 2^3903138 is an apocalyptic number.

3903138 is an abundant number, since it is smaller than the sum of its proper divisors (4553700).

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

3903138 is a wasteful number, since it uses less digits than its factorization.

3903138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216849 (or 216846 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 3903138 is about 1975.6361000954. The cubic root of 3903138 is about 157.4482974663.

The spelling of 3903138 in words is "three million, nine hundred three thousand, one hundred thirty-eight".