801540684 has 120 divisors (see below), whose sum is σ = 2535714720. Its totient is φ = 215529984.

The previous prime is 801540673. The next prime is 801540689. The reversal of 801540684 is 486045108.

801540684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (801540689) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28162 + ... + 48950.

It is an arithmetic number, because the mean of its divisors is an integer number (21130956).

Almost surely, 2^801540684 is an apocalyptic number.

801540684 is a gapful number since it is divisible by the number (84) 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 801540684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1267857360).

801540684 is an abundant number, since it is smaller than the sum of its proper divisors (1734174036).

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

801540684 is a wasteful number, since it uses less digits than its factorization.

801540684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20829 (or 20818 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 801540684 is about 28311.4938496717. The cubic root of 801540684 is about 928.9133197073.

The spelling of 801540684 in words is "eight hundred one million, five hundred forty thousand, six hundred eighty-four".