50438409 has 16 divisors (see below), whose sum is σ = 77580288. Its totient is φ = 28551312.

The previous prime is 50438387. The next prime is 50438413. The reversal of 50438409 is 90483405.

It is not a de Polignac number, because 50438409 - 2¹⁷ = 50307337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50438409.

It is not an unprimeable number, because it can be changed into a prime (50438449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8977 + ... + 13470.

It is an arithmetic number, because the mean of its divisors is an integer number (4848768).

Almost surely, 2^50438409 is an apocalyptic number.

It is an amenable number.

50438409 is a deficient number, since it is larger than the sum of its proper divisors (27141879).

50438409 is a wasteful number, since it uses less digits than its factorization.

50438409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22564.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 50438409 is about 7102.0003520135. Note that the first 3 decimals coincide. The cubic root of 50438409 is about 369.4767597933.

The spelling of 50438409 in words is "fifty million, four hundred thirty-eight thousand, four hundred nine".