3549428218 has 16 divisors (see below), whose sum is σ = 6349288320. Its totient is φ = 1455044976.

The previous prime is 3549428189. The next prime is 3549428219. The reversal of 3549428218 is 8128249453.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (3549428219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5511213 + ... + 5511856.

It is an arithmetic number, because the mean of its divisors is an integer number (396830520).

Almost surely, 2^3549428218 is an apocalyptic number.

3549428218 is a deficient number, since it is larger than the sum of its proper divisors (2799860102).

3549428218 is a wasteful number, since it uses less digits than its factorization.

3549428218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11023101.

The product of its digits is 552960, while the sum is 46.

The square root of 3549428218 is about 59577.0779578858. The cubic root of 3549428218 is about 1525.4083962919.

The spelling of 3549428218 in words is "three billion, five hundred forty-nine million, four hundred twenty-eight thousand, two hundred eighteen".