3668938 has 32 divisors (see below), whose sum is σ = 7136640. Its totient is φ = 1373760.

The previous prime is 3668927. The next prime is 3668939. The reversal of 3668938 is 8398663.

It is a super-2 number, since 2×3668938² = 26922212095688, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3668894 and 3668903.

It is not an unprimeable number, because it can be changed into a prime (3668939) 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, 2928 + ... + 3988.

It is an arithmetic number, because the mean of its divisors is an integer number (223020).

Almost surely, 2^3668938 is an apocalyptic number.

3668938 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3668938 is a deficient number, since it is larger than the sum of its proper divisors (3467702).

3668938 is a wasteful number, since it uses less digits than its factorization.

3668938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102.

The product of its digits is 186624, while the sum is 43.

The square root of 3668938 is about 1915.4472062680. The cubic root of 3668938 is about 154.2340008115.

The spelling of 3668938 in words is "three million, six hundred sixty-eight thousand, nine hundred thirty-eight".