80485920 has 192 divisors, whose sum is σ = 291271680. Its totient is φ = 20736000.

The previous prime is 80485877. The next prime is 80485963. The reversal of 80485920 is 2958408.

It is an interprime number because it is at equal distance from previous prime (80485877) and next prime (80485963).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133620 + ... + 134220.

It is an arithmetic number, because the mean of its divisors is an integer number (1517040).

Almost surely, 2^80485920 is an apocalyptic number.

80485920 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 80485920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145635840).

80485920 is an abundant number, since it is smaller than the sum of its proper divisors (210785760).

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

80485920 is a wasteful number, since it uses less digits than its factorization.

80485920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 80485920 is about 8971.3945404268. The cubic root of 80485920 is about 431.7575800391.

The spelling of 80485920 in words is "eighty million, four hundred eighty-five thousand, nine hundred twenty".