79158220 has 24 divisors (see below), whose sum is σ = 167076000. Its totient is φ = 31502592.

The previous prime is 79158217. The next prime is 79158229. The reversal of 79158220 is 2285197.

It is not an unprimeable number, because it can be changed into a prime (79158229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5965 + ... + 13924.

It is an arithmetic number, because the mean of its divisors is an integer number (6961500).

Almost surely, 2^79158220 is an apocalyptic number.

It is an amenable number.

79158220 is an abundant number, since it is smaller than the sum of its proper divisors (87917780).

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

79158220 is a wasteful number, since it uses less digits than its factorization.

79158220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20097 (or 20095 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 79158220 is about 8897.0905356751. The cubic root of 79158220 is about 429.3703060140.

The spelling of 79158220 in words is "seventy-nine million, one hundred fifty-eight thousand, two hundred twenty".