3140644 has 12 divisors (see below), whose sum is σ = 5919004. Its totient is φ = 1449504.

The previous prime is 3140639. The next prime is 3140653. The reversal of 3140644 is 4460413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 580644 + 2560000 = 762^2 + 1600^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30147 + ... + 30250.

Almost surely, 2^3140644 is an apocalyptic number.

It is an amenable number.

3140644 is a deficient number, since it is larger than the sum of its proper divisors (2778360).

3140644 is a wasteful number, since it uses less digits than its factorization.

3140644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60414 (or 60412 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3140644 is about 1772.1862204633. The cubic root of 3140644 is about 146.4444453826. Note that the first 5 decimals are identical.

The spelling of 3140644 in words is "three million, one hundred forty thousand, six hundred forty-four".