1147067840 has 56 divisors (see below), whose sum is σ = 2745333600. Its totient is φ = 456496128.

The previous prime is 1147067839. The next prime is 1147067879. The reversal of 1147067840 is 487607411.

It is a junction number, because it is equal to n+sod(n) for n = 1147067794 and 1147067803.

It is a congruent number.

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, 54674 + ... + 72686.

Almost surely, 2^1147067840 is an apocalyptic number.

1147067840 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 1147067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372666800).

1147067840 is an abundant number, since it is smaller than the sum of its proper divisors (1598265760).

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

1147067840 is a wasteful number, since it uses less digits than its factorization.

1147067840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18229 (or 18219 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 1147067840 is about 33868.3899824010. The cubic root of 1147067840 is about 1046.7983624480.

The spelling of 1147067840 in words is "one billion, one hundred forty-seven million, sixty-seven thousand, eight hundred forty".