3318538 has 4 divisors (see below), whose sum is σ = 4977810. Its totient is φ = 1659268.

The previous prime is 3318533. The next prime is 3318547. The reversal of 3318538 is 8358133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8358133 = 7 ⋅1194019.

It can be written as a sum of positive squares in only one way, i.e., 3122289 + 196249 = 1767^2 + 443^2 .

It is a super-2 number, since 2×3318538² = 22025388914888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3318533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829633 + ... + 829636.

Almost surely, 2^3318538 is an apocalyptic number.

3318538 is a deficient number, since it is larger than the sum of its proper divisors (1659272).

3318538 is a wasteful number, since it uses less digits than its factorization.

3318538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659271.

The product of its digits is 8640, while the sum is 31.

The square root of 3318538 is about 1821.6854832819. The cubic root of 3318538 is about 149.1588174904.

The spelling of 3318538 in words is "three million, three hundred eighteen thousand, five hundred thirty-eight".