49544640 has 84 divisors (see below), whose sum is σ = 170422824. Its totient is φ = 13211136.

The previous prime is 49544629. The next prime is 49544653. The reversal of 49544640 is 4644594.

49544640 is a `hidden beast` number, since 4 + 9 + 5 + 4 + 4 + 640 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 = 49544595 and 49544604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5722 + ... + 11481.

Almost surely, 2^49544640 is an apocalyptic number.

49544640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49544640 is an abundant number, since it is smaller than the sum of its proper divisors (120878184).

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

49544640 is a wasteful number, since it uses less digits than its factorization.

49544640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17226 (or 17213 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 49544640 is about 7038.7953514788. The cubic root of 49544640 is about 367.2813637749.

The spelling of 49544640 in words is "forty-nine million, five hundred forty-four thousand, six hundred forty".