49781746 has 24 divisors (see below), whose sum is σ = 91976796. Its totient is φ = 20079360.

The previous prime is 49781741. The next prime is 49781747. The reversal of 49781746 is 64718794.

It can be written as a sum of positive squares in 2 ways, for example, as 49491225 + 290521 = 7035^2 + 539^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49781696 and 49781705.

It is not an unprimeable number, because it can be changed into a prime (49781741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13275 + ... + 16606.

Almost surely, 2^49781746 is an apocalyptic number.

49781746 is a deficient number, since it is larger than the sum of its proper divisors (42195050).

49781746 is a wasteful number, since it uses less digits than its factorization.

49781746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29914 (or 29907 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 49781746 is about 7055.6180452176. The cubic root of 49781746 is about 367.8663316127.

It can be divided in two parts, 4978 and 1746, that added together give a square (6724 = 82²).

The spelling of 49781746 in words is "forty-nine million, seven hundred eighty-one thousand, seven hundred forty-six".