3574640 has 20 divisors (see below), whose sum is σ = 8311224. Its totient is φ = 1429824.

The previous prime is 3574639. The next prime is 3574643. The reversal of 3574640 is 464753.

3574640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×3574640² = 25556102259200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3574643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22262 + ... + 22421.

Almost surely, 2^3574640 is an apocalyptic number.

It is an amenable number.

3574640 is an abundant number, since it is smaller than the sum of its proper divisors (4736584).

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

3574640 is a wasteful number, since it uses less digits than its factorization.

3574640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44696 (or 44690 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 3574640 is about 1890.6718382628. The cubic root of 3574640 is about 152.9011564856.

The spelling of 3574640 in words is "three million, five hundred seventy-four thousand, six hundred forty".