116405778 has 16 divisors (see below), whose sum is σ = 236091456. Its totient is φ = 38255280.

The previous prime is 116405771. The next prime is 116405791. The reversal of 116405778 is 877504611.

It is not an unprimeable number, because it can be changed into a prime (116405771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136201 + ... + 137052.

It is an arithmetic number, because the mean of its divisors is an integer number (14755716).

Almost surely, 2^116405778 is an apocalyptic number.

116405778 is an abundant number, since it is smaller than the sum of its proper divisors (119685678).

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

116405778 is a wasteful number, since it uses less digits than its factorization.

116405778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273329.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 116405778 is about 10789.1509397172. The cubic root of 116405778 is about 488.2679063982.

The spelling of 116405778 in words is "one hundred sixteen million, four hundred five thousand, seven hundred seventy-eight".