1136453840 has 80 divisors (see below), whose sum is σ = 2789017920. Its totient is φ = 429465600.

The previous prime is 1136453839. The next prime is 1136453849. The reversal of 1136453840 is 483546311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1136453840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136453849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709040 + ... + 710640.

It is an arithmetic number, because the mean of its divisors is an integer number (34862724).

Almost surely, 2^1136453840 is an apocalyptic number.

1136453840 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 1136453840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394508960).

1136453840 is an abundant number, since it is smaller than the sum of its proper divisors (1652564080).

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

1136453840 is a wasteful number, since it uses less digits than its factorization.

1136453840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1136453840 is about 33711.3310327551. The cubic root of 1136453840 is about 1043.5596220598.

The spelling of 1136453840 in words is "one billion, one hundred thirty-six million, four hundred fifty-three thousand, eight hundred forty".