3366840 has 32 divisors (see below), whose sum is σ = 10100880. Its totient is φ = 897792.

The previous prime is 3366829. The next prime is 3366841. The reversal of 3366840 is 486633.

It is a super-2 number, since 2×3366840² = 22671223171200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3366798 and 3366807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3366841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13909 + ... + 14148.

Almost surely, 2^3366840 is an apocalyptic number.

3366840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3366840 is an abundant number, since it is smaller than the sum of its proper divisors (6734040).

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

3366840 is a wasteful number, since it uses less digits than its factorization.

3366840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28071 (or 28067 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 3366840 is about 1834.8950923690. The cubic root of 3366840 is about 149.8790135525.

The spelling of 3366840 in words is "three million, three hundred sixty-six thousand, eight hundred forty".