80485020 has 144 divisors (see below), whose sum is σ = 304432128. Its totient is φ = 16721280.

The previous prime is 80485019. The next prime is 80485039. The reversal of 80485020 is 2058408.

It is a congruent number.

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, 10957 + ... + 16763.

It is an arithmetic number, because the mean of its divisors is an integer number (2114112).

Almost surely, 2^80485020 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 80485020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152216064).

80485020 is an abundant number, since it is smaller than the sum of its proper divisors (223947108).

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

80485020 is a wasteful number, since it uses less digits than its factorization.

80485020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5840 (or 5835 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 80485020 is about 8971.3443808607. The cubic root of 80485020 is about 431.7559707172.

The spelling of 80485020 in words is "eighty million, four hundred eighty-five thousand, twenty".