50439840 has 192 divisors, whose sum is σ = 178319232. Its totient is φ = 11878400.

The previous prime is 50439827. The next prime is 50439877. The reversal of 50439840 is 4893405.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216364 + ... + 216596.

It is an arithmetic number, because the mean of its divisors is an integer number (928746).

Almost surely, 2^50439840 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 50439840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89159616).

50439840 is an abundant number, since it is smaller than the sum of its proper divisors (127879392).

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

50439840 is a wasteful number, since it uses less digits than its factorization.

50439840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 295 counting only the distinct ones).

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

The square root of 50439840 is about 7102.1010975626. The cubic root of 50439840 is about 369.4802539310.

The spelling of 50439840 in words is "fifty million, four hundred thirty-nine thousand, eight hundred forty".