118229428 has 12 divisors (see below), whose sum is σ = 206986752. Its totient is φ = 59090360.

The previous prime is 118229401. The next prime is 118229459. The reversal of 118229428 is 824922811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8973 + ... + 17803.

It is an arithmetic number, because the mean of its divisors is an integer number (17248896).

Almost surely, 2^118229428 is an apocalyptic number.

It is an amenable number.

118229428 is a deficient number, since it is larger than the sum of its proper divisors (88757324).

118229428 is a wasteful number, since it uses less digits than its factorization.

118229428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12182 (or 12180 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 118229428 is about 10873.3356427547. The cubic root of 118229428 is about 490.8044926876.

The spelling of 118229428 in words is "one hundred eighteen million, two hundred twenty-nine thousand, four hundred twenty-eight".