49940 has 24 divisors (see below), whose sum is σ = 114912. Its totient is φ = 18080.

The previous prime is 49939. The next prime is 49943. The reversal of 49940 is 4994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107 + ... + 333.

It is an arithmetic number, because the mean of its divisors is an integer number (4788).

2⁴⁹⁹⁴⁰ 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 49940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57456).

49940 is an abundant number, since it is smaller than the sum of its proper divisors (64972).

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

49940 is a wasteful number, since it uses less digits than its factorization.

49940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 49940 is about 223.4725933979. The cubic root of 49940 is about 36.8255729620.

It can be divided in two parts, 49 and 940, that added together give a palindrome (989).

The spelling of 49940 in words is "forty-nine thousand, nine hundred forty".