49783540 has 24 divisors (see below), whose sum is σ = 104700960. Its totient is φ = 19883808.

The previous prime is 49783529. The next prime is 49783541. The reversal of 49783540 is 4538794.

It is a junction number, because it is equal to n+sod(n) for n = 49783493 and 49783502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49783541) 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, 16251 + ... + 19069.

It is an arithmetic number, because the mean of its divisors is an integer number (4362540).

Almost surely, 2^49783540 is an apocalyptic number.

It is an amenable number.

49783540 is an abundant number, since it is smaller than the sum of its proper divisors (54917420).

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

49783540 is a wasteful number, since it uses less digits than its factorization.

49783540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 49783540 is about 7055.7451768045. The cubic root of 49783540 is about 367.8707505301.

The spelling of 49783540 in words is "forty-nine million, seven hundred eighty-three thousand, five hundred forty".