8402409936 has 100 divisors (see below), whose sum is σ = 25749609732. Its totient is φ = 2636043264.

The previous prime is 8402409929. The next prime is 8402409941. The reversal of 8402409936 is 6399042048.

It can be written as a sum of positive squares in 2 ways, for example, as 6444878400 + 1957531536 = 80280^2 + 44244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8402409891 and 8402409900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 168655 + ... + 212718.

Almost surely, 2^8402409936 is an apocalyptic number.

It is an amenable number.

8402409936 is an abundant number, since it is smaller than the sum of its proper divisors (17347199796).

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

8402409936 is a wasteful number, since it uses less digits than its factorization.

8402409936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381410 (or 381395 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 8402409936 is about 91664.6602350110. The cubic root of 8402409936 is about 2032.9870958488.

The spelling of 8402409936 in words is "eight billion, four hundred two million, four hundred nine thousand, nine hundred thirty-six".