80299890 has 128 divisors (see below), whose sum is σ = 246067200. Its totient is φ = 18429120.

The previous prime is 80299859. The next prime is 80299897. The reversal of 80299890 is 9899208.

It is a super-3 number, since 3×80299890³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (80299897) 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 63 ways as a sum of consecutive naturals, for example, 55719 + ... + 57141.

It is an arithmetic number, because the mean of its divisors is an integer number (1922400).

Almost surely, 2^80299890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80299890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123033600).

80299890 is an abundant number, since it is smaller than the sum of its proper divisors (165767310).

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

80299890 is a wasteful number, since it uses less digits than its factorization.

80299890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 80299890 is about 8961.0205891963. The cubic root of 80299890 is about 431.4246778194.

The spelling of 80299890 in words is "eighty million, two hundred ninety-nine thousand, eight hundred ninety".