3581018 has 12 divisors (see below), whose sum is σ = 6248682. Its totient is φ = 1534680.

The previous prime is 3581003. The next prime is 3581021. The reversal of 3581018 is 8101853.

3581018 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 only one way, i.e., 2181529 + 1399489 = 1477^2 + 1183^2 .

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 5 ways as a sum of consecutive naturals, for example, 18173 + ... + 18368.

Almost surely, 2^3581018 is an apocalyptic number.

3581018 is a deficient number, since it is larger than the sum of its proper divisors (2667664).

3581018 is a wasteful number, since it uses less digits than its factorization.

3581018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36557 (or 36550 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 3581018 is about 1892.3577885802. The cubic root of 3581018 is about 152.9920396844.

The spelling of 3581018 in words is "three million, five hundred eighty-one thousand, eighteen".