1164126240 has 72 divisors (see below), whose sum is σ = 3972585708. Its totient is φ = 310433280.

The previous prime is 1164126239. The next prime is 1164126247. The reversal of 1164126240 is 426214611.

1164126240 is a `hidden beast` number, since 1 + 1 + 6 + 412 + 6 + 240 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1105695504 + 58430736 = 33252^2 + 7644^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (1164126247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402771 + ... + 405650.

Almost surely, 2^1164126240 is an apocalyptic number.

1164126240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164126240 is an abundant number, since it is smaller than the sum of its proper divisors (2808459468).

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

1164126240 is a wasteful number, since it uses less digits than its factorization.

1164126240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808442 (or 808431 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1164126240 is about 34119.2942482696. The cubic root of 1164126240 is about 1051.9619372563.

The spelling of 1164126240 in words is "one billion, one hundred sixty-four million, one hundred twenty-six thousand, two hundred forty".