49980240 has 140 divisors (see below), whose sum is σ = 174429684. Its totient is φ = 13312512.

The previous prime is 49980181. The next prime is 49980251. The reversal of 49980240 is 4208994.

It is a happy number.

49980240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 34012224 + 15968016 = 5832^2 + 3996^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49980195 and 49980204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 57892 + ... + 58748.

Almost surely, 2^49980240 is an apocalyptic number.

49980240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49980240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87214842).

49980240 is an abundant number, since it is smaller than the sum of its proper divisors (124449444).

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

49980240 is an equidigital number, since it uses as much as digits as its factorization.

49980240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 49980240 is about 7069.6704307910. The cubic root of 49980240 is about 368.3546124945.

The spelling of 49980240 in words is "forty-nine million, nine hundred eighty thousand, two hundred forty".