3387640 has 16 divisors (see below), whose sum is σ = 7622280. Its totient is φ = 1355040.

The previous prime is 3387613. The next prime is 3387653. The reversal of 3387640 is 467833.

It is a super-2 number, since 2×3387640² = 22952209539200, which contains 22 as substring.

It is a congruent number.

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, 42306 + ... + 42385.

Almost surely, 2^3387640 is an apocalyptic number.

It is an amenable number.

3387640 is an abundant number, since it is smaller than the sum of its proper divisors (4234640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3387640 is a wasteful number, since it uses less digits than its factorization.

3387640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84702 (or 84698 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 3387640 is about 1840.5542643454. The cubic root of 3387640 is about 150.1870259709.

The spelling of 3387640 in words is "three million, three hundred eighty-seven thousand, six hundred forty".