39403189622416 has 45 divisors (see below), whose sum is σ = 76811739159369. Its totient is φ = 19581537160512.

The previous prime is 39403189622413. The next prime is 39403189622479. The reversal of 39403189622416 is 61422698130493.

The square root of 39403189622416 is 6277196.

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

It can be written as a sum of positive squares in only one way, i.e., 209379456400 + 39193810166016 = 457580^2 + 6260496^2 .

It is a super-2 number, since 2×39403189622416² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39403189622413) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4193162230 + ... + 4193171626.

Almost surely, 2^{39403189622416} is an apocalyptic number.

39403189622416 is the 6277196-th square number.

It is an amenable number.

39403189622416 is a deficient number, since it is larger than the sum of its proper divisors (37408549536953).

39403189622416 is an frugal number, since it uses more digits than its factorization.

39403189622416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19136 (or 9566 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 58.

The spelling of 39403189622416 in words is "thirty-nine trillion, four hundred three billion, one hundred eighty-nine million, six hundred twenty-two thousand, four hundred sixteen".