80821468 has 96 divisors (see below), whose sum is σ = 189834624. Its totient is φ = 29196288.

The previous prime is 80821457. The next prime is 80821469. The reversal of 80821468 is 86412808.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80821469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228780 + ... + 229132.

It is an arithmetic number, because the mean of its divisors is an integer number (1977444).

Almost surely, 2^80821468 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 80821468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94917312).

80821468 is an abundant number, since it is smaller than the sum of its proper divisors (109013156).

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

80821468 is a wasteful number, since it uses less digits than its factorization.

80821468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 80821468 is about 8990.0760842164. The cubic root of 80821468 is about 432.3567512053.

The spelling of 80821468 in words is "eighty million, eight hundred twenty-one thousand, four hundred sixty-eight".