402738543 has 12 divisors (see below), whose sum is σ = 591594120. Its totient is φ = 263941296.

The previous prime is 402738527. The next prime is 402738563. The reversal of 402738543 is 345837204.

It is a happy number.

402738543 is a `hidden beast` number, since 40 + 2 + 73 + 8 + 543 = 666.

It is not a de Polignac number, because 402738543 - 2⁴ = 402738527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402738498 and 402738507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402738563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378696 + ... + 379757.

It is an arithmetic number, because the mean of its divisors is an integer number (49299510).

Almost surely, 2^402738543 is an apocalyptic number.

402738543 is a deficient number, since it is larger than the sum of its proper divisors (188855577).

402738543 is a wasteful number, since it uses less digits than its factorization.

402738543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758518 (or 758515 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 402738543 is about 20068.3467928975. The cubic root of 402738543 is about 738.4839566987.

The spelling of 402738543 in words is "four hundred two million, seven hundred thirty-eight thousand, five hundred forty-three".