120400116 has 24 divisors (see below), whose sum is σ = 281250144. Its totient is φ = 40088160.

The previous prime is 120400081. The next prime is 120400117. The reversal of 120400116 is 611004021.

It is a junction number, because it is equal to n+sod(n) for n = 120400095 and 120400104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120400117) 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, 6486 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (11718756).

Almost surely, 2^120400116 is an apocalyptic number.

It is an amenable number.

120400116 is an abundant number, since it is smaller than the sum of its proper divisors (160850028).

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

120400116 is a wasteful number, since it uses less digits than its factorization.

120400116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11311 (or 11309 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 120400116 is about 10972.6986653239. The cubic root of 120400116 is about 493.7900127590.

Adding to 120400116 its reverse (611004021), we get a palindrome (731404137).

The spelling of 120400116 in words is "one hundred twenty million, four hundred thousand, one hundred sixteen".