49782144 has 32 divisors (see below), whose sum is σ = 132234840. Its totient is φ = 16593920.

The previous prime is 49782113. The next prime is 49782157. The reversal of 49782144 is 44128794.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×49782144² = 4956523722473472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64437 + ... + 65204.

Almost surely, 2^49782144 is an apocalyptic number.

It is an amenable number.

49782144 is an abundant number, since it is smaller than the sum of its proper divisors (82452696).

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

49782144 is a wasteful number, since it uses less digits than its factorization.

49782144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129658 (or 129646 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 49782144 is about 7055.6462496358. The cubic root of 49782144 is about 367.8673119614.

The spelling of 49782144 in words is "forty-nine million, seven hundred eighty-two thousand, one hundred forty-four".