80020742 has 8 divisors (see below), whose sum is σ = 126348600. Its totient is φ = 37904544.

The previous prime is 80020739. The next prime is 80020747. The reversal of 80020742 is 24702008.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80020747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052867 + ... + 1052942.

It is an arithmetic number, because the mean of its divisors is an integer number (15793575).

Almost surely, 2^80020742 is an apocalyptic number.

80020742 is a deficient number, since it is larger than the sum of its proper divisors (46327858).

80020742 is a wasteful number, since it uses less digits than its factorization.

80020742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105830.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 80020742 is about 8945.4313479004. The cubic root of 80020742 is about 430.9241741920.

The spelling of 80020742 in words is "eighty million, twenty thousand, seven hundred forty-two".