1147993308 has 108 divisors (see below), whose sum is σ = 3645423600. Its totient is φ = 298172160.

The previous prime is 1147993307. The next prime is 1147993313. The reversal of 1147993308 is 8033997411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147993307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11668 + ... + 49316.

Almost surely, 2^1147993308 is an apocalyptic number.

1147993308 is a gapful number since it is divisible by the number (18) 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 1147993308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1822711800).

1147993308 is an abundant number, since it is smaller than the sum of its proper divisors (2497430292).

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

1147993308 is a wasteful number, since it uses less digits than its factorization.

1147993308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37688 (or 37672 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1147993308 is about 33882.0499379834. The cubic root of 1147993308 is about 1047.0798099002.

The spelling of 1147993308 in words is "one billion, one hundred forty-seven million, nine hundred ninety-three thousand, three hundred eight".