3427640 has 16 divisors (see below), whose sum is σ = 7712280. Its totient is φ = 1371040.

The previous prime is 3427607. The next prime is 3427673. The reversal of 3427640 is 467243.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3427607) and next prime (3427673).

It is a d-powerful number, because it can be written as 3⁹ + 4⁹ + 2²¹ + 7² + 6² + 4¹⁰ + 0 .

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, 42806 + ... + 42885.

Almost surely, 2^3427640 is an apocalyptic number.

It is an amenable number.

3427640 is an abundant number, since it is smaller than the sum of its proper divisors (4284640).

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

3427640 is a wasteful number, since it uses less digits than its factorization.

3427640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85702 (or 85698 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 3427640 is about 1851.3886680003. The cubic root of 3427640 is about 150.7758321632.

The spelling of 3427640 in words is "three million, four hundred twenty-seven thousand, six hundred forty".