3658938 has 16 divisors (see below), whose sum is σ = 7348320. Its totient is φ = 1214576.

The previous prime is 3658891. The next prime is 3658943. The reversal of 3658938 is 8398563.

It is a self number, because there is not a number n which added to its sum of digits gives 3658938.

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, 481 + ... + 2747.

It is an arithmetic number, because the mean of its divisors is an integer number (459270).

Almost surely, 2^3658938 is an apocalyptic number.

3658938 is an abundant number, since it is smaller than the sum of its proper divisors (3689382).

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

3658938 is a wasteful number, since it uses less digits than its factorization.

3658938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541.

The product of its digits is 155520, while the sum is 42.

The square root of 3658938 is about 1912.8350686873. The cubic root of 3658938 is about 154.0937473837.

The spelling of 3658938 in words is "three million, six hundred fifty-eight thousand, nine hundred thirty-eight".