1147442040 has 96 divisors (see below), whose sum is σ = 3746171520. Its totient is φ = 304591104.

The previous prime is 1147442033. The next prime is 1147442041. The reversal of 1147442040 is 402447411.

It is a junction number, because it is equal to n+sod(n) for n = 1147441995 and 1147442013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147442041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73134 + ... + 87426.

It is an arithmetic number, because the mean of its divisors is an integer number (39022620).

Almost surely, 2^1147442040 is an apocalyptic number.

1147442040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1147442040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1873085760).

1147442040 is an abundant number, since it is smaller than the sum of its proper divisors (2598729480).

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

1147442040 is a wasteful number, since it uses less digits than its factorization.

1147442040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14533 (or 14526 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 1147442040 is about 33873.9138571261. The cubic root of 1147442040 is about 1046.9121799998.

Adding to 1147442040 its reverse (402447411), we get a palindrome (1549889451).

The spelling of 1147442040 in words is "one billion, one hundred forty-seven million, four hundred forty-two thousand, forty".