50405438 has 8 divisors (see below), whose sum is σ = 77034888. Its totient is φ = 24727144.

The previous prime is 50405437. The next prime is 50405447. The reversal of 50405438 is 83450405.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 50405438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50405437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237656 + ... + 237867.

It is an arithmetic number, because the mean of its divisors is an integer number (9629361).

Almost surely, 2^50405438 is an apocalyptic number.

50405438 is a deficient number, since it is larger than the sum of its proper divisors (26629450).

50405438 is a wasteful number, since it uses less digits than its factorization.

50405438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475578.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 50405438 is about 7099.6787251255. The cubic root of 50405438 is about 369.3962346943.

The spelling of 50405438 in words is "fifty million, four hundred five thousand, four hundred thirty-eight".