1135851840 has 84 divisors (see below), whose sum is σ = 3906866964. Its totient is φ = 302893056.

The previous prime is 1135851833. The next prime is 1135851853. The reversal of 1135851840 is 481585311.

1135851840 is a `hidden beast` number, since 1 + 135 + 8 + 518 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 904325184 + 231526656 = 30072^2 + 15216^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1135851795 and 1135851804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194317 + ... + 200076.

It is an arithmetic number, because the mean of its divisors is an integer number (46510321).

Almost surely, 2^1135851840 is an apocalyptic number.

1135851840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135851840 is an abundant number, since it is smaller than the sum of its proper divisors (2771015124).

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

1135851840 is a wasteful number, since it uses less digits than its factorization.

1135851840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394416 (or 394403 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 1135851840 is about 33702.4011014052. The cubic root of 1135851840 is about 1043.3753254258.

The spelling of 1135851840 in words is "one billion, one hundred thirty-five million, eight hundred fifty-one thousand, eight hundred forty".