1136379780 has 168 divisors, whose sum is σ = 3667154904. Its totient is φ = 295488000.

The previous prime is 1136379763. The next prime is 1136379793. The reversal of 1136379780 is 879736311.

1136379780 is a `hidden beast` number, since 1 + 1 + 3 + 637 + 9 + 7 + 8 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47775744 + 1088604036 = 6912^2 + 32994^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 596830 + ... + 598730.

It is an arithmetic number, because the mean of its divisors is an integer number (21828303).

Almost surely, 2^1136379780 is an apocalyptic number.

1136379780 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 1136379780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1833577452).

1136379780 is an abundant number, since it is smaller than the sum of its proper divisors (2530775124).

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

1136379780 is a wasteful number, since it uses less digits than its factorization.

1136379780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1952 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 1136379780 is about 33710.2325711348. The cubic root of 1136379780 is about 1043.5369527993.

The spelling of 1136379780 in words is "one billion, one hundred thirty-six million, three hundred seventy-nine thousand, seven hundred eighty".