50454640 has 80 divisors (see below), whose sum is σ = 129688128. Its totient is φ = 18157568.

The previous prime is 50454631. The next prime is 50454667. The reversal of 50454640 is 4645405.

It is a tau number, because it is divible by the number of its divisors (80).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 50454599 and 50454608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30474 + ... + 32086.

Almost surely, 2^50454640 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 50454640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64844064).

50454640 is an abundant number, since it is smaller than the sum of its proper divisors (79233488).

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

50454640 is a wasteful number, since it uses less digits than its factorization.

50454640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 50454640 is about 7103.1429663213. The cubic root of 50454640 is about 369.5163878879.

The spelling of 50454640 in words is "fifty million, four hundred fifty-four thousand, six hundred forty".