80485440 has 336 divisors, whose sum is σ = 312724800. Its totient is φ = 17461248.

The previous prime is 80485417. The next prime is 80485477. The reversal of 80485440 is 4458408.

It is a tau number, because it is divible by the number of its divisors (336).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1364131 + ... + 1364189.

Almost surely, 2^80485440 is an apocalyptic number.

80485440 is a gapful number since it is divisible by the number (80) 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 80485440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156362400).

80485440 is an abundant number, since it is smaller than the sum of its proper divisors (232239360).

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

80485440 is a wasteful number, since it uses less digits than its factorization.

80485440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 80485440 is about 8971.3677886931. The cubic root of 80485440 is about 431.7567217356.

The spelling of 80485440 in words is "eighty million, four hundred eighty-five thousand, four hundred forty".