3140649 has 12 divisors (see below), whose sum is σ = 4568512. Its totient is φ = 2079000.

The previous prime is 3140639. The next prime is 3140653. The reversal of 3140649 is 9460413.

3140649 is a `hidden beast` number, since 3 + 14 + 0 + 649 = 666.

It is not a de Polignac number, because 3140649 - 2⁴ = 3140633 is a prime.

It is a super-2 number, since 2×3140649² = 19727352282402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3140639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204 + ... + 2514.

Almost surely, 2^3140649 is an apocalyptic number.

It is an amenable number.

3140649 is a deficient number, since it is larger than the sum of its proper divisors (1427863).

3140649 is a wasteful number, since it uses less digits than its factorization.

3140649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 3140649 is about 1772.1876311497. The cubic root of 3140649 is about 146.4445230972. Note that the first 3 decimals are identical.

The spelling of 3140649 in words is "three million, one hundred forty thousand, six hundred forty-nine".