1170001920 has 208 divisors, whose sum is σ = 3798002880. Its totient is φ = 307494912.

The previous prime is 1170001873. The next prime is 1170001949. The reversal of 1170001920 is 291000711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8417211 + ... + 8417349.

Almost surely, 2^1170001920 is an apocalyptic number.

1170001920 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 1170001920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1899001440).

1170001920 is an abundant number, since it is smaller than the sum of its proper divisors (2628000960).

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

1170001920 is a wasteful number, since it uses less digits than its factorization.

1170001920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 1170001920 is about 34205.2908188192. The cubic root of 1170001920 is about 1053.7288194277.

The spelling of 1170001920 in words is "one billion, one hundred seventy million, one thousand, nine hundred twenty".