80824940 has 48 divisors (see below), whose sum is σ = 198725184. Its totient is φ = 27033600.

The previous prime is 80824927. The next prime is 80824949. The reversal of 80824940 is 4942808.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 80824940.

It is not an unprimeable number, because it can be changed into a prime (80824949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301 + ... + 12780.

It is an arithmetic number, because the mean of its divisors is an integer number (4140108).

Almost surely, 2^80824940 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 80824940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99362592).

80824940 is an abundant number, since it is smaller than the sum of its proper divisors (117900244).

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

80824940 is a wasteful number, since it uses less digits than its factorization.

80824940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14138 (or 14136 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 80824940 is about 8990.2691839566. The cubic root of 80824940 is about 432.3629423044.

The spelling of 80824940 in words is "eighty million, eight hundred twenty-four thousand, nine hundred forty".