3690418 has 4 divisors (see below), whose sum is σ = 5535630. Its totient is φ = 1845208.

The previous prime is 3690397. The next prime is 3690437. The reversal of 3690418 is 8140963.

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

It can be written as a sum of positive squares in only one way, i.e., 3598609 + 91809 = 1897^2 + 303^2 .

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 self number, because there is not a number n which added to its sum of digits gives 3690418.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922603 + ... + 922606.

Almost surely, 2^3690418 is an apocalyptic number.

3690418 is a deficient number, since it is larger than the sum of its proper divisors (1845212).

3690418 is a wasteful number, since it uses less digits than its factorization.

3690418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845211.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3690418 is about 1921.0460692029. The cubic root of 3690418 is about 154.5344058160.

The spelling of 3690418 in words is "three million, six hundred ninety thousand, four hundred eighteen".