1170263864 has 128 divisors (see below), whose sum is σ = 2821824000. Its totient is φ = 451019520.

The previous prime is 1170263849. The next prime is 1170263891. The reversal of 1170263864 is 4683620711.

It is a super-2 number, since 2×1170263864² = 2739035022768420992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4135067 + ... + 4135349.

It is an arithmetic number, because the mean of its divisors is an integer number (22045500).

Almost surely, 2^1170263864 is an apocalyptic number.

1170263864 is a gapful number since it is divisible by the number (14) 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 1170263864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410912000).

1170263864 is an abundant number, since it is smaller than the sum of its proper divisors (1651560136).

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

1170263864 is a wasteful number, since it uses less digits than its factorization.

1170263864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1170263864 is about 34209.1196028194. The cubic root of 1170263864 is about 1053.8074510211.

The spelling of 1170263864 in words is "one billion, one hundred seventy million, two hundred sixty-three thousand, eight hundred sixty-four".