49173984 has 72 divisors (see below), whose sum is σ = 141169392. Its totient is φ = 16235520.

The previous prime is 49173947. The next prime is 49173989. The reversal of 49173984 is 48937194.

49173984 is a `hidden beast` number, since 491 + 73 + 98 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49173989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31789 + ... + 33299.

It is an arithmetic number, because the mean of its divisors is an integer number (1960686).

Almost surely, 2^49173984 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 49173984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70584696).

49173984 is an abundant number, since it is smaller than the sum of its proper divisors (91995408).

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

49173984 is a wasteful number, since it uses less digits than its factorization.

49173984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1629 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 49173984 is about 7012.4164166142. The cubic root of 49173984 is about 366.3631618857.

The spelling of 49173984 in words is "forty-nine million, one hundred seventy-three thousand, nine hundred eighty-four".