638114733 has 8 divisors (see below), whose sum is σ = 945355200. Its totient is φ = 425409804.

The previous prime is 638114689. The next prime is 638114761. The reversal of 638114733 is 337411836.

638114733 is a `hidden beast` number, since 638 + 1 + 14 + 7 + 3 + 3 = 666.

638114733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 638114733 - 2¹² = 638110637 is a prime.

It is a super-2 number, since 2×638114733² = 814380824943322578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638114333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11816913 + ... + 11816966.

It is an arithmetic number, because the mean of its divisors is an integer number (118169400).

Almost surely, 2^638114733 is an apocalyptic number.

It is an amenable number.

638114733 is a deficient number, since it is larger than the sum of its proper divisors (307240467).

638114733 is a wasteful number, since it uses less digits than its factorization.

638114733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23633888 (or 23633882 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 638114733 is about 25260.9329400163. The cubic root of 638114733 is about 860.9268594768.

The spelling of 638114733 in words is "six hundred thirty-eight million, one hundred fourteen thousand, seven hundred thirty-three".