3427540 has 36 divisors (see below), whose sum is σ = 7659036. Its totient is φ = 1288192.

The previous prime is 3427537. The next prime is 3427547. The reversal of 3427540 is 457243.

3427540 = 471² + 472² + ... + 485².

It can be written as a sum of positive squares in 6 ways, for example, as 266256 + 3161284 = 516^2 + 1778^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3427547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5484 + ... + 6076.

It is an arithmetic number, because the mean of its divisors is an integer number (212751).

Almost surely, 2^3427540 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 3427540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3829518).

3427540 is an abundant number, since it is smaller than the sum of its proper divisors (4231496).

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

3427540 is a wasteful number, since it uses less digits than its factorization.

3427540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 3427540 is about 1851.3616610484. The cubic root of 3427540 is about 150.7743658745.

The spelling of 3427540 in words is "three million, four hundred twenty-seven thousand, five hundred forty".