801720480 has 96 divisors (see below), whose sum is σ = 2755021248. Its totient is φ = 194355200.

The previous prime is 801720473. The next prime is 801720487. The reversal of 801720480 is 84027108.

It is an interprime number because it is at equal distance from previous prime (801720473) and next prime (801720487).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (801720487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70641 + ... + 81200.

It is an arithmetic number, because the mean of its divisors is an integer number (28698138).

Almost surely, 2^801720480 is an apocalyptic number.

801720480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

801720480 is an abundant number, since it is smaller than the sum of its proper divisors (1953300768).

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

801720480 is a wasteful number, since it uses less digits than its factorization.

801720480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151870 (or 151862 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 801720480 is about 28314.6689897657. The cubic root of 801720480 is about 928.9827702943.

Adding to 801720480 its reverse (84027108), we get a palindrome (885747588).

The spelling of 801720480 in words is "eight hundred one million, seven hundred twenty thousand, four hundred eighty".