3387840 has 56 divisors (see below), whose sum is σ = 10759440. Its totient is φ = 903168.

The previous prime is 3387827. The next prime is 3387863. The reversal of 3387840 is 487833.

It is a super-2 number, since 2×3387840² = 22954919731200, 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 7 ways as a sum of consecutive naturals, for example, 805 + ... + 2724.

Almost surely, 2^3387840 is an apocalyptic number.

3387840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3387840 is an abundant number, since it is smaller than the sum of its proper divisors (7371600).

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

3387840 is a wasteful number, since it uses less digits than its factorization.

3387840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 3387840 is about 1840.6085950033. The cubic root of 3387840 is about 150.1899815008.

The spelling of 3387840 in words is "three million, three hundred eighty-seven thousand, eight hundred forty".