3057221818 has 24 divisors (see below), whose sum is σ = 5518494900. Its totient is φ = 1265056128.

The previous prime is 3057221807. The next prime is 3057221819. The reversal of 3057221818 is 8181227503.

It can be written as a sum of positive squares in 2 ways, for example, as 2974284369 + 82937449 = 54537^2 + 9107^2 .

It is not an unprimeable number, because it can be changed into a prime (3057221819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 535023 + ... + 540706.

Almost surely, 2^3057221818 is an apocalyptic number.

3057221818 is a deficient number, since it is larger than the sum of its proper divisors (2461273082).

3057221818 is a wasteful number, since it uses less digits than its factorization.

3057221818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075774 (or 1075767 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 3057221818 is about 55292.1496959559. The cubic root of 3057221818 is about 1451.3616725982.

The spelling of 3057221818 in words is "three billion, fifty-seven million, two hundred twenty-one thousand, eight hundred eighteen".