1147011440 has 40 divisors (see below), whose sum is σ = 2683192848. Its totient is φ = 455984640.

The previous prime is 1147011419. The next prime is 1147011457. The reversal of 1147011440 is 441107411.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30941 + ... + 57020.

Almost surely, 2^1147011440 is an apocalyptic number.

1147011440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1147011440 is an abundant number, since it is smaller than the sum of its proper divisors (1536181408).

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

1147011440 is a wasteful number, since it uses less digits than its factorization.

1147011440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88137 (or 88131 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1147011440 is about 33867.5573373693. The cubic root of 1147011440 is about 1046.7812055449.

Adding to 1147011440 its reverse (441107411), we get a palindrome (1588118851).

The spelling of 1147011440 in words is "one billion, one hundred forty-seven million, eleven thousand, four hundred forty".