1161470736 has 120 divisors (see below), whose sum is σ = 3452004504. Its totient is φ = 363294720.

The previous prime is 1161470729. The next prime is 1161470773. The reversal of 1161470736 is 6370741611.

1161470736 is a `hidden beast` number, since 1 + 1 + 614 + 7 + 0 + 7 + 36 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 456249600 + 705221136 = 21360^2 + 26556^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1161470736.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1323930 + ... + 1324806.

Almost surely, 2^1161470736 is an apocalyptic number.

1161470736 is a gapful number since it is divisible by the number (16) 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 1161470736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1726002252).

1161470736 is an abundant number, since it is smaller than the sum of its proper divisors (2290533768).

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

1161470736 is a wasteful number, since it uses less digits than its factorization.

1161470736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1161470736 is about 34080.3570403832. The cubic root of 1161470736 is about 1051.1614467766.

The spelling of 1161470736 in words is "one billion, one hundred sixty-one million, four hundred seventy thousand, seven hundred thirty-six".