738540405 has 12 divisors (see below), whose sum is σ = 1280136780. Its totient is φ = 393888192.

The previous prime is 738540389. The next prime is 738540409. The reversal of 738540405 is 504045837.

738540405 is a `hidden beast` number, since 73 + 8 + 540 + 40 + 5 = 666.

738540405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 95765796 + 642774609 = 9786^2 + 25353^2 .

It is not a de Polignac number, because 738540405 - 2⁴ = 738540389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 738540405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738540409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8205960 + ... + 8206049.

It is an arithmetic number, because the mean of its divisors is an integer number (106678065).

Almost surely, 2^738540405 is an apocalyptic number.

It is an amenable number.

738540405 is a deficient number, since it is larger than the sum of its proper divisors (541596375).

738540405 is a wasteful number, since it uses less digits than its factorization.

738540405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16412020 (or 16412017 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 738540405 is about 27176.0998857452. The cubic root of 738540405 is about 903.9090891460.

The spelling of 738540405 in words is "seven hundred thirty-eight million, five hundred forty thousand, four hundred five".