79340140 has 24 divisors (see below), whose sum is σ = 181761552. Its totient is φ = 28850880.

The previous prime is 79340137. The next prime is 79340141. The reversal of 79340140 is 4104397.

It is a junction number, because it is equal to n+sod(n) for n = 79340099 and 79340108.

It is not an unprimeable number, because it can be changed into a prime (79340141) 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, 180099 + ... + 180538.

It is an arithmetic number, because the mean of its divisors is an integer number (7573398).

Almost surely, 2^79340140 is an apocalyptic number.

It is an amenable number.

79340140 is an abundant number, since it is smaller than the sum of its proper divisors (102421412).

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

79340140 is a wasteful number, since it uses less digits than its factorization.

79340140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360657 (or 360655 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 79340140 is about 8907.3082353762. The cubic root of 79340140 is about 429.6989780691.

The spelling of 79340140 in words is "seventy-nine million, three hundred forty thousand, one hundred forty".