801989760 has 512 divisors, whose sum is σ = 3158507520. Its totient is φ = 170311680.

The previous prime is 801989759. The next prime is 801989777. The reversal of 801989760 is 67989108.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6314817 + ... + 6314943.

It is an arithmetic number, because the mean of its divisors is an integer number (6168960).

Almost surely, 2^801989760 is an apocalyptic number.

801989760 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 801989760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579253760).

801989760 is an abundant number, since it is smaller than the sum of its proper divisors (2356517760).

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

801989760 is a wasteful number, since it uses less digits than its factorization.

801989760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 801989760 is about 28319.4237229503. The cubic root of 801989760 is about 929.0867668386.

It can be divided in two parts, 8019 and 89760, that added together give a palindrome (97779).

The spelling of 801989760 in words is "eight hundred one million, nine hundred eighty-nine thousand, seven hundred sixty".