118428834 has 32 divisors (see below), whose sum is σ = 252624960. Its totient is φ = 36882432.

The previous prime is 118428811. The next prime is 118428841. The reversal of 118428834 is 438824811.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 118428792 and 118428801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10002 + ... + 18354.

It is an arithmetic number, because the mean of its divisors is an integer number (7894530).

Almost surely, 2^118428834 is an apocalyptic number.

118428834 is an abundant number, since it is smaller than the sum of its proper divisors (134196126).

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

118428834 is a wasteful number, since it uses less digits than its factorization.

118428834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8514.

The product of its digits is 49152, while the sum is 39.

The square root of 118428834 is about 10882.5012749827. The cubic root of 118428834 is about 491.0802683316.

The spelling of 118428834 in words is "one hundred eighteen million, four hundred twenty-eight thousand, eight hundred thirty-four".