116405289 has 128 divisors (see below), whose sum is σ = 238694400. Its totient is φ = 54120960.

The previous prime is 116405269. The next prime is 116405327. The reversal of 116405289 is 982504611.

116405289 is a `hidden beast` number, since 1 + 1 + 640 + 5 + 2 + 8 + 9 = 666.

It is not a de Polignac number, because 116405289 - 2⁷ = 116405161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116405269) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1594557 + ... + 1594629.

It is an arithmetic number, because the mean of its divisors is an integer number (1864800).

Almost surely, 2^116405289 is an apocalyptic number.

It is an amenable number.

116405289 is an abundant number, since it is smaller than the sum of its proper divisors (122289111).

116405289 is a wasteful number, since it uses less digits than its factorization.

116405289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 116405289 is about 10789.1282780399. The cubic root of 116405289 is about 488.2672226883.

The spelling of 116405289 in words is "one hundred sixteen million, four hundred five thousand, two hundred eighty-nine".