80434944 has 126 divisors (see below), whose sum is σ = 241281936. Its totient is φ = 26749440.

The previous prime is 80434943. The next prime is 80434957. The reversal of 80434944 is 44943408.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 80434899 and 80434908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80434943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 186409 + ... + 186839.

It is an arithmetic number, because the mean of its divisors is an integer number (1914936).

Almost surely, 2^80434944 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 80434944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120640968).

80434944 is an abundant number, since it is smaller than the sum of its proper divisors (160846992).

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

80434944 is an frugal number, since it uses more digits than its factorization.

80434944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 80434944 is about 8968.5530605555. The cubic root of 80434944 is about 431.6664091337. Note that the first 3 decimals are identical.

The spelling of 80434944 in words is "eighty million, four hundred thirty-four thousand, nine hundred forty-four".