1171096920 has 512 divisors, whose sum is σ = 4866048000. Its totient is φ = 244477440.

The previous prime is 1171096907. The next prime is 1171096973. The reversal of 1171096920 is 296901711.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4452709 + ... + 4452971.

It is an arithmetic number, because the mean of its divisors is an integer number (9504000).

Almost surely, 2^1171096920 is an apocalyptic number.

1171096920 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 1171096920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2433024000).

1171096920 is an abundant number, since it is smaller than the sum of its proper divisors (3694951080).

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

1171096920 is a wasteful number, since it uses less digits than its factorization.

1171096920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 1171096920 is about 34221.2933712331. The cubic root of 1171096920 is about 1054.0574437569.

The spelling of 1171096920 in words is "one billion, one hundred seventy-one million, ninety-six thousand, nine hundred twenty".