3346640 has 40 divisors (see below), whose sum is σ = 8490528. Its totient is φ = 1216640.

The previous prime is 3346633. The next prime is 3346649. The reversal of 3346640 is 466433.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×3346640² = 22399998579200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3346649) 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, 1022 + ... + 2781.

Almost surely, 2^3346640 is an apocalyptic number.

It is an amenable number.

3346640 is an abundant number, since it is smaller than the sum of its proper divisors (5143888).

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

3346640 is a wasteful number, since it uses less digits than its factorization.

3346640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827 (or 3821 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 3346640 is about 1829.3824094486. The cubic root of 3346640 is about 149.5786694973.

It can be divided in two parts, 3 and 346640, that added together give a palindrome (346643).

The spelling of 3346640 in words is "three million, three hundred forty-six thousand, six hundred forty".