116404578 has 12 divisors (see below), whose sum is σ = 252209958. Its totient is φ = 38801520.

The previous prime is 116404573. The next prime is 116404601. The reversal of 116404578 is 875404611.

It is a happy number.

116404578 is a `hidden beast` number, since 1 + 1 + 640 + 4 + 5 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100460529 + 15944049 = 10023^2 + 3993^2 .

It is not an unprimeable number, because it can be changed into a prime (116404573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3233443 + ... + 3233478.

Almost surely, 2^116404578 is an apocalyptic number.

116404578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

116404578 is an abundant number, since it is smaller than the sum of its proper divisors (135805380).

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

116404578 is a wasteful number, since it uses less digits than its factorization.

116404578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466929 (or 6466926 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 116404578 is about 10789.0953281543. The cubic root of 116404578 is about 488.2662285791.

The spelling of 116404578 in words is "one hundred sixteen million, four hundred four thousand, five hundred seventy-eight".