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49998 = 2313641

49998 has 16 divisors (see below), whose sum is σ = 107856. Its totient is φ = 15360.

The previous prime is 49993. The next prime is 49999. The reversal of 49998 is 89994.

49998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 49998.

It is not an unprimeable number, because it can be changed into a prime (49991) by changing a digit.

49998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243 + ... + 398.

It is an arithmetic number, because the mean of its divisors is an integer number (6741).

249998 is an apocalyptic number.

49998 is an abundant number, since it is smaller than the sum of its proper divisors (57858).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53928).

49998 is a wasteful number, since it uses less digits than its factorization.

49998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659.

The product of its digits is 23328, while the sum is 39.

The square root of 49998 is about 223.6023255693. The cubic root of 49998 is about 36.8398237757.

The spelling of 49998 in words is "forty-nine thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 13 26 39 78 641 1282 1923 3846 8333 16666 24999 49998