50724240 has 160 divisors (see below), whose sum is σ = 182012160. Its totient is φ = 11446272.

The previous prime is 50724239. The next prime is 50724251. The reversal of 50724240 is 4242705.

50724240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 50724240.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 182982 + ... + 183258.

It is an arithmetic number, because the mean of its divisors is an integer number (1137576).

Almost surely, 2^50724240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50724240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91006080).

50724240 is an abundant number, since it is smaller than the sum of its proper divisors (131287920).

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

50724240 is a wasteful number, since it uses less digits than its factorization.

50724240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 50724240 is about 7122.0951973419. The cubic root of 50724240 is about 370.1733786900.

Adding to 50724240 its reverse (4242705), we get a palindrome (54966945).

The spelling of 50724240 in words is "fifty million, seven hundred twenty-four thousand, two hundred forty".