1618455226 has 8 divisors (see below), whose sum is σ = 2555455680. Its totient is φ = 766636668.

The previous prime is 1618455211. The next prime is 1618455253. The reversal of 1618455226 is 6225548161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1618455226² = 5238794637133422152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21295426 + ... + 21295501.

It is an arithmetic number, because the mean of its divisors is an integer number (319431960).

Almost surely, 2^1618455226 is an apocalyptic number.

1618455226 is a deficient number, since it is larger than the sum of its proper divisors (937000454).

1618455226 is a wasteful number, since it uses less digits than its factorization.

1618455226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42590948.

The product of its digits is 115200, while the sum is 40.

The square root of 1618455226 is about 40230.0289087642. The cubic root of 1618455226 is about 1174.0868658681.

The spelling of 1618455226 in words is "one billion, six hundred eighteen million, four hundred fifty-five thousand, two hundred twenty-six".