3527840 has 48 divisors (see below), whose sum is σ = 8831592. Its totient is φ = 1327104.

The previous prime is 3527833. The next prime is 3527851. The reversal of 3527840 is 487253.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3519376 + 8464 = 1876^2 + 92^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2072 + ... + 3368.

Almost surely, 2^3527840 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 3527840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4415796).

3527840 is an abundant number, since it is smaller than the sum of its proper divisors (5303752).

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

3527840 is a wasteful number, since it uses less digits than its factorization.

3527840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 3527840 is about 1878.2545088459. The cubic root of 3527840 is about 152.2309508515.

It can be divided in two parts, 352 and 7840, that added together give a 13-th power (8192 = 2¹³).

The spelling of 3527840 in words is "three million, five hundred twenty-seven thousand, eight hundred forty".