49573640 has 16 divisors (see below), whose sum is σ = 111540780. Its totient is φ = 19829440.

The previous prime is 49573639. The next prime is 49573661. The reversal of 49573640 is 4637594.

49573640 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 48080356 + 1493284 = 6934^2 + 1222^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49573594 and 49573603.

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 3 ways as a sum of consecutive naturals, for example, 619631 + ... + 619710.

Almost surely, 2^49573640 is an apocalyptic number.

49573640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49573640 is an abundant number, since it is smaller than the sum of its proper divisors (61967140).

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

49573640 is a wasteful number, since it uses less digits than its factorization.

49573640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239352 (or 1239348 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 49573640 is about 7040.8550617095. The cubic root of 49573640 is about 367.3530101533.

The spelling of 49573640 in words is "forty-nine million, five hundred seventy-three thousand, six hundred forty".