49978584 has 48 divisors (see below), whose sum is σ = 136284720. Its totient is φ = 16545600.

The previous prime is 49978567. The next prime is 49978597. The reversal of 49978584 is 48587994.

49978584 is a `hidden beast` number, since 499 + 78 + 5 + 84 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 49978584.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8574 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (2839265).

Almost surely, 2^49978584 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 49978584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68142360).

49978584 is an abundant number, since it is smaller than the sum of its proper divisors (86306136).

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

49978584 is a wasteful number, since it uses less digits than its factorization.

49978584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760 (or 4753 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 49978584 is about 7069.5533097926. The cubic root of 49978584 is about 368.3505442069.

The spelling of 49978584 in words is "forty-nine million, nine hundred seventy-eight thousand, five hundred eighty-four".