9404138432 has 112 divisors (see below), whose sum is σ = 21161044800. Its totient is φ = 4113973248.

The previous prime is 9404138417. The next prime is 9404138461. The reversal of 9404138432 is 2348314049.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2160194 + ... + 2164542.

It is an arithmetic number, because the mean of its divisors is an integer number (188937900).

Almost surely, 2^9404138432 is an apocalyptic number.

9404138432 is a gapful number since it is divisible by the number (92) 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 9404138432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10580522400).

9404138432 is an abundant number, since it is smaller than the sum of its proper divisors (11756906368).

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

9404138432 is a wasteful number, since it uses less digits than its factorization.

9404138432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510 (or 4500 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 9404138432 is about 96974.9371332614. The cubic root of 9404138432 is about 2110.7639643541.

The spelling of 9404138432 in words is "nine billion, four hundred four million, one hundred thirty-eight thousand, four hundred thirty-two".