1166400242 has 32 divisors (see below), whose sum is σ = 2158444800. Its totient is φ = 461659968.

The previous prime is 1166400233. The next prime is 1166400251. The reversal of 1166400242 is 2420046611.

It is an interprime number because it is at equal distance from previous prime (1166400233) and next prime (1166400251).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53117 + ... + 71792.

It is an arithmetic number, because the mean of its divisors is an integer number (67451400).

Almost surely, 2^1166400242 is an apocalyptic number.

1166400242 is a deficient number, since it is larger than the sum of its proper divisors (992044558).

1166400242 is a wasteful number, since it uses less digits than its factorization.

1166400242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124970.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1166400242 is about 34152.6022727405. The cubic root of 1166400242 is about 1052.6464585562.

Adding to 1166400242 its reverse (2420046611), we get a palindrome (3586446853).

The spelling of 1166400242 in words is "one billion, one hundred sixty-six million, four hundred thousand, two hundred forty-two".