1150311440 has 40 divisors (see below), whose sum is σ = 2684928600. Its totient is φ = 458326016.

The previous prime is 1150311413. The next prime is 1150311469. The reversal of 1150311440 is 441130511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 286421776 + 863889664 = 16924^2 + 29392^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7415 + ... + 48534.

It is an arithmetic number, because the mean of its divisors is an integer number (67123215).

Almost surely, 2^1150311440 is an apocalyptic number.

1150311440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150311440 is an abundant number, since it is smaller than the sum of its proper divisors (1534617160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1150311440 is a wasteful number, since it uses less digits than its factorization.

1150311440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56219 (or 56213 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1150311440 is about 33916.2415370571. The cubic root of 1150311440 is about 1047.7841221524.

Adding to 1150311440 its reverse (441130511), we get a palindrome (1591441951).

The spelling of 1150311440 in words is "one billion, one hundred fifty million, three hundred eleven thousand, four hundred forty".