738181641 has 16 divisors (see below), whose sum is σ = 1017712640. Its totient is φ = 475439760.

The previous prime is 738181637. The next prime is 738181643. The reversal of 738181641 is 146181837.

It is not a de Polignac number, because 738181641 - 2² = 738181637 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 738181641.

It is not an unprimeable number, because it can be changed into a prime (738181643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 51156 + ... + 63978.

It is an arithmetic number, because the mean of its divisors is an integer number (63607040).

Almost surely, 2^738181641 is an apocalyptic number.

It is an amenable number.

738181641 is a deficient number, since it is larger than the sum of its proper divisors (279530999).

738181641 is a wasteful number, since it uses less digits than its factorization.

738181641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13476.

The product of its digits is 32256, while the sum is 39.

The square root of 738181641 is about 27169.4983575332. The cubic root of 738181641 is about 903.7627001500.

The spelling of 738181641 in words is "seven hundred thirty-eight million, one hundred eighty-one thousand, six hundred forty-one".