79940434 has 8 divisors (see below), whose sum is σ = 137040768. Its totient is φ = 34260180.

The previous prime is 79940431. The next prime is 79940473. The reversal of 79940434 is 43404997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (79940431) 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 3 ways as a sum of consecutive naturals, for example, 2855002 + ... + 2855029.

It is an arithmetic number, because the mean of its divisors is an integer number (17130096).

Almost surely, 2^79940434 is an apocalyptic number.

79940434 is a deficient number, since it is larger than the sum of its proper divisors (57100334).

79940434 is a wasteful number, since it uses less digits than its factorization.

79940434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5710040.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 79940434 is about 8940.9414493106. The cubic root of 79940434 is about 430.7799689059.

The spelling of 79940434 in words is "seventy-nine million, nine hundred forty thousand, four hundred thirty-four".