80838742 has 8 divisors (see below), whose sum is σ = 121833432. Its totient is φ = 40227600.

The previous prime is 80838739. The next prime is 80838743. The reversal of 80838742 is 24783808.

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

It is a junction number, because it is equal to n+sod(n) for n = 80838695 and 80838704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80838743) 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, 95359 + ... + 96202.

It is an arithmetic number, because the mean of its divisors is an integer number (15229179).

Almost surely, 2^80838742 is an apocalyptic number.

80838742 is a deficient number, since it is larger than the sum of its proper divisors (40994690).

80838742 is a wasteful number, since it uses less digits than its factorization.

80838742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191774.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 80838742 is about 8991.0367589061. The cubic root of 80838742 is about 432.3875515966.

The spelling of 80838742 in words is "eighty million, eight hundred thirty-eight thousand, seven hundred forty-two".