79140228 has 24 divisors (see below), whose sum is σ = 186297888. Its totient is φ = 26146176.

The previous prime is 79140227. The next prime is 79140239. The reversal of 79140228 is 82204197.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79140227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27826 + ... + 30537.

It is an arithmetic number, because the mean of its divisors is an integer number (7762412).

Almost surely, 2^79140228 is an apocalyptic number.

It is an amenable number.

79140228 is an abundant number, since it is smaller than the sum of its proper divisors (107157660).

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

79140228 is a wasteful number, since it uses less digits than its factorization.

79140228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58483 (or 58481 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 79140228 is about 8896.0793611568. The cubic root of 79140228 is about 429.3377727916.

The spelling of 79140228 in words is "seventy-nine million, one hundred forty thousand, two hundred twenty-eight".