49781944 has 8 divisors (see below), whose sum is σ = 93341160. Its totient is φ = 24890968.

The previous prime is 49781911. The next prime is 49781969. The reversal of 49781944 is 44918794.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 49781894 and 49781903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3111364 + ... + 3111379.

It is an arithmetic number, because the mean of its divisors is an integer number (11667645).

Almost surely, 2^49781944 is an apocalyptic number.

It is an amenable number.

49781944 is a deficient number, since it is larger than the sum of its proper divisors (43559216).

49781944 is a wasteful number, since it uses less digits than its factorization.

49781944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222749 (or 6222745 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 49781944 is about 7055.6320765754. The cubic root of 49781944 is about 367.8668193245.

The spelling of 49781944 in words is "forty-nine million, seven hundred eighty-one thousand, nine hundred forty-four".