3436640 has 48 divisors (see below), whose sum is σ = 8309952. Its totient is φ = 1342464.

The previous prime is 3436639. The next prime is 3436649. The reversal of 3436640 is 466343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3436649) 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, 7292 + ... + 7748.

It is an arithmetic number, because the mean of its divisors is an integer number (173124).

Almost surely, 2^3436640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3436640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4154976).

3436640 is an abundant number, since it is smaller than the sum of its proper divisors (4873312).

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

3436640 is a wasteful number, since it uses less digits than its factorization.

3436640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 511 counting only the distinct ones).

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

The square root of 3436640 is about 1853.8176825136. The cubic root of 3436640 is about 150.9076815345.

The spelling of 3436640 in words is "three million, four hundred thirty-six thousand, six hundred forty".