8404899732 has 36 divisors (see below), whose sum is σ = 21281600340. Its totient is φ = 2796901632.

The previous prime is 8404899731. The next prime is 8404899757. The reversal of 8404899732 is 2379984048.

8404899732 is a `hidden beast` number, since 8 + 40 + 489 + 97 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5948111376 + 2456788356 = 77124^2 + 49566^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404899731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175507 + ... + 218202.

It is an arithmetic number, because the mean of its divisors is an integer number (591155565).

Almost surely, 2^8404899732 is an apocalyptic number.

It is an amenable number.

8404899732 is an abundant number, since it is smaller than the sum of its proper divisors (12876700608).

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

8404899732 is a wasteful number, since it uses less digits than its factorization.

8404899732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394312 (or 394307 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 8404899732 is about 91678.2402318020. The cubic root of 8404899732 is about 2033.1878804372.

The spelling of 8404899732 in words is "eight billion, four hundred four million, eight hundred ninety-nine thousand, seven hundred thirty-two".