1155400318 has 32 divisors (see below), whose sum is σ = 1828915200. Its totient is φ = 546667680.

The previous prime is 1155400303. The next prime is 1155400319. The reversal of 1155400318 is 8130045511.

It is a super-2 number, since 2×1155400318² = 2669899789669002248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155400319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1928583 + ... + 1929181.

It is an arithmetic number, because the mean of its divisors is an integer number (57153600).

Almost surely, 2^1155400318 is an apocalyptic number.

1155400318 is a deficient number, since it is larger than the sum of its proper divisors (673514882).

1155400318 is a wasteful number, since it uses less digits than its factorization.

1155400318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 1155400318 is about 33991.1800030537. The cubic root of 1155400318 is about 1049.3269512840.

Adding to 1155400318 its reverse (8130045511), we get a palindrome (9285445829).

The spelling of 1155400318 in words is "one billion, one hundred fifty-five million, four hundred thousand, three hundred eighteen".