80465280 has 128 divisors (see below), whose sum is σ = 293172480. Its totient is φ = 18388992.

The previous prime is 80465279. The next prime is 80465303. The reversal of 80465280 is 8256408.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×80465280² = 12949322570956800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10447 + ... + 16433.

It is an arithmetic number, because the mean of its divisors is an integer number (2290410).

Almost surely, 2^80465280 is an apocalyptic number.

80465280 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 80465280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146586240).

80465280 is an abundant number, since it is smaller than the sum of its proper divisors (212707200).

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

80465280 is a wasteful number, since it uses less digits than its factorization.

80465280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016 (or 6004 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 80465280 is about 8970.2441438347. The cubic root of 80465280 is about 431.7206699049.

The spelling of 80465280 in words is "eighty million, four hundred sixty-five thousand, two hundred eighty".