80018796 has 144 divisors (see below), whose sum is σ = 234638208. Its totient is φ = 20966400.

The previous prime is 80018791. The next prime is 80018797. The reversal of 80018796 is 69781008.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80018791) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 379131 + ... + 379341.

It is an arithmetic number, because the mean of its divisors is an integer number (1629432).

Almost surely, 2^80018796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80018796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117319104).

80018796 is an abundant number, since it is smaller than the sum of its proper divisors (154619412).

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

80018796 is a wasteful number, since it uses less digits than its factorization.

80018796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 80018796 is about 8945.3225766319. The cubic root of 80018796 is about 430.9206809926.

The spelling of 80018796 in words is "eighty million, eighteen thousand, seven hundred ninety-six".