50984640 has 280 divisors, whose sum is σ = 208007712. Its totient is φ = 11612160.

The previous prime is 50984621. The next prime is 50984653. The reversal of 50984640 is 4648905.

50984640 is a `hidden beast` number, since 5 + 0 + 9 + 8 + 4 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 50984595 and 50984604.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 181300 + ... + 181580.

Almost surely, 2^50984640 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 50984640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104003856).

50984640 is an abundant number, since it is smaller than the sum of its proper divisors (157023072).

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

50984640 is a wasteful number, since it uses less digits than its factorization.

50984640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 50984640 is about 7140.3529324537. The cubic root of 50984640 is about 370.8057434621.

The spelling of 50984640 in words is "fifty million, nine hundred eighty-four thousand, six hundred forty".