3690238 has 4 divisors (see below), whose sum is σ = 5535360. Its totient is φ = 1845118.

The previous prime is 3690233. The next prime is 3690251. The reversal of 3690238 is 8320963.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3690233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922558 + ... + 922561.

It is an arithmetic number, because the mean of its divisors is an integer number (1383840).

Almost surely, 2^3690238 is an apocalyptic number.

3690238 is a deficient number, since it is larger than the sum of its proper divisors (1845122).

3690238 is a wasteful number, since it uses less digits than its factorization.

3690238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845121.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3690238 is about 1920.9992191565. Note that the first 3 decimals coincide. The cubic root of 3690238 is about 154.5318933052.

The spelling of 3690238 in words is "three million, six hundred ninety thousand, two hundred thirty-eight".