8401332840 has 32 divisors (see below), whose sum is σ = 25203998880. Its totient is φ = 2240355392.

The previous prime is 8401332839. The next prime is 8401332869. The reversal of 8401332840 is 482331048.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35005434 + ... + 35005673.

It is an arithmetic number, because the mean of its divisors is an integer number (787624965).

Almost surely, 2^8401332840 is an apocalyptic number.

It is an amenable number.

8401332840 is an abundant number, since it is smaller than the sum of its proper divisors (16802666040).

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

8401332840 is a wasteful number, since it uses less digits than its factorization.

8401332840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70011121 (or 70011117 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 8401332840 is about 91658.7848490258. The cubic root of 8401332840 is about 2032.9002233183.

Adding to 8401332840 its reverse (482331048), we get a palindrome (8883663888).

The spelling of 8401332840 in words is "eight billion, four hundred one million, three hundred thirty-two thousand, eight hundred forty".