1171423808 has 56 divisors (see below), whose sum is σ = 2378765880. Its totient is φ = 572149760.

The previous prime is 1171423789. The next prime is 1171423823. The reversal of 1171423808 is 8083241711.

It can be written as a sum of positive squares in 4 ways, for example, as 755590144 + 415833664 = 27488^2 + 20392^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 952538 + ... + 953766.

Almost surely, 2^1171423808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171423808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189382940).

1171423808 is an abundant number, since it is smaller than the sum of its proper divisors (1207342072).

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

1171423808 is a wasteful number, since it uses less digits than its factorization.

1171423808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1171423808 is about 34226.0691286627. The cubic root of 1171423808 is about 1054.1555075664.

The spelling of 1171423808 in words is "one billion, one hundred seventy-one million, four hundred twenty-three thousand, eight hundred eight".