49521940 has 48 divisors (see below), whose sum is σ = 113460480. Its totient is φ = 18046080.

The previous prime is 49521929. The next prime is 49521991. The reversal of 49521940 is 4912594.

49521940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 49521896 and 49521905.

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 15 ways as a sum of consecutive naturals, for example, 19335 + ... + 21745.

It is an arithmetic number, because the mean of its divisors is an integer number (2363760).

Almost surely, 2^49521940 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 49521940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56730240).

49521940 is an abundant number, since it is smaller than the sum of its proper divisors (63938540).

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

49521940 is a wasteful number, since it uses less digits than its factorization.

49521940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512 (or 2510 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 49521940 is about 7037.1826749062. The cubic root of 49521940 is about 367.2252624449.

The spelling of 49521940 in words is "forty-nine million, five hundred twenty-one thousand, nine hundred forty".