1018320369 has 16 divisors (see below), whose sum is σ = 1490635200. Its totient is φ = 613229760.

The previous prime is 1018320361. The next prime is 1018320461. The reversal of 1018320369 is 9630238101.

It is not a de Polignac number, because 1018320369 - 2³ = 1018320361 is a prime.

It is a super-2 number, since 2×1018320369² = 2073952747840592322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1018320361) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 93094 + ... + 103455.

It is an arithmetic number, because the mean of its divisors is an integer number (93164700).

Almost surely, 2^1018320369 is an apocalyptic number.

It is an amenable number.

1018320369 is a deficient number, since it is larger than the sum of its proper divisors (472314831).

1018320369 is a wasteful number, since it uses less digits than its factorization.

1018320369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196720.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1018320369 is about 31911.1323678744. The cubic root of 1018320369 is about 1006.0698717785.

The spelling of 1018320369 in words is "one billion, eighteen million, three hundred twenty thousand, three hundred sixty-nine".