39403838016 has 147 divisors (see below), whose sum is σ = 117362063091. Its totient is φ = 13120320384.

The previous prime is 39403837997. The next prime is 39403838029. The reversal of 39403838016 is 61083830493.

The square root of 39403838016 is 198504.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 42876405 + ... + 42877323.

Almost surely, 2^39403838016 is an apocalyptic number.

39403838016 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

39403838016 is the 198504-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39403838016

39403838016 is an abundant number, since it is smaller than the sum of its proper divisors (77958225075).

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

39403838016 is an frugal number, since it uses more digits than its factorization.

39403838016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868 (or 924 counting only the distinct ones).

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

The spelling of 39403838016 in words is "thirty-nine billion, four hundred three million, eight hundred thirty-eight thousand, sixteen".