116564238 has 48 divisors (see below), whose sum is σ = 301329360. Its totient is φ = 33303312.

The previous prime is 116564237. The next prime is 116564243. The reversal of 116564238 is 832465611.

It is a happy number.

116564238 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 642 + 3 + 8 = 666.

It is a super-3 number, since 3×116564238³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116564233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19381 + ... + 24672.

It is an arithmetic number, because the mean of its divisors is an integer number (6277695).

Almost surely, 2^116564238 is an apocalyptic number.

116564238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

116564238 is an abundant number, since it is smaller than the sum of its proper divisors (184765122).

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

116564238 is a wasteful number, since it uses less digits than its factorization.

116564238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44078 (or 44065 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 116564238 is about 10796.4919302522. The cubic root of 116564238 is about 488.4893611881.

The spelling of 116564238 in words is "one hundred sixteen million, five hundred sixty-four thousand, two hundred thirty-eight".