3554640 has 60 divisors (see below), whose sum is σ = 11940084. Its totient is φ = 947712.

The previous prime is 3554611. The next prime is 3554651. The reversal of 3554640 is 464553.

3554640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1411344 + 2143296 = 1188^2 + 1464^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1749 + ... + 3188.

Almost surely, 2^3554640 is an apocalyptic number.

3554640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3554640 is an abundant number, since it is smaller than the sum of its proper divisors (8385444).

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

3554640 is a wasteful number, since it uses less digits than its factorization.

3554640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956 (or 4947 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 3554640 is about 1885.3752942054. The cubic root of 3554640 is about 152.6154639306.

The spelling of 3554640 in words is "three million, five hundred fifty-four thousand, six hundred forty".