1147916440 has 64 divisors (see below), whose sum is σ = 2829958560. Its totient is φ = 415595520.

The previous prime is 1147916389. The next prime is 1147916443. The reversal of 1147916440 is 446197411.

It is a self number, because there is not a number n which added to its sum of digits gives 1147916440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147916443) 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 15 ways as a sum of consecutive naturals, for example, 96922 + ... + 108118.

Almost surely, 2^1147916440 is an apocalyptic number.

1147916440 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 1147916440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414979280).

1147916440 is an abundant number, since it is smaller than the sum of its proper divisors (1682042120).

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

1147916440 is a wasteful number, since it uses less digits than its factorization.

1147916440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11452 (or 11448 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1147916440 is about 33880.9155720444. The cubic root of 1147916440 is about 1047.0564390533.

The spelling of 1147916440 in words is "one billion, one hundred forty-seven million, nine hundred sixteen thousand, four hundred forty".