50390424 has 216 divisors, whose sum is σ = 172104660. Its totient is φ = 13771296.

The previous prime is 50390423. The next prime is 50390437. The reversal of 50390424 is 42409305.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50390423) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 2190877 + ... + 2190899.

Almost surely, 2^50390424 is an apocalyptic number.

50390424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50390424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86052330).

50390424 is an abundant number, since it is smaller than the sum of its proper divisors (121714236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50390424 is a wasteful number, since it uses less digits than its factorization.

50390424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 35 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 50390424 is about 7098.6212745857. The cubic root of 50390424 is about 369.3595543543.

Adding to 50390424 its reverse (42409305), we get a palindrome (92799729).

The spelling of 50390424 in words is "fifty million, three hundred ninety thousand, four hundred twenty-four".