80105004 has 72 divisors (see below), whose sum is σ = 241602480. Its totient is φ = 22885632.

The previous prime is 80104993. The next prime is 80105029. The reversal of 80105004 is 40050108.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2277 + ... + 12860.

It is an arithmetic number, because the mean of its divisors is an integer number (3355590).

Almost surely, 2^80105004 is an apocalyptic number.

80105004 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80105004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120801240).

80105004 is an abundant number, since it is smaller than the sum of its proper divisors (161497476).

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

80105004 is a wasteful number, since it uses less digits than its factorization.

80105004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15164 (or 15149 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 80105004 is about 8950.1398871749. The cubic root of 80105004 is about 431.0753758026.

The spelling of 80105004 in words is "eighty million, one hundred five thousand, four".