49784445 has 24 divisors (see below), whose sum is σ = 89271000. Its totient is φ = 25635456.

The previous prime is 49784431. The next prime is 49784447. The reversal of 49784445 is 54448794.

It can be written as a sum of positive squares in 4 ways, for example, as 14607684 + 35176761 = 3822^2 + 5931^2 .

It is not a de Polignac number, because 49784445 - 2¹⁵ = 49751677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 49784445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49784447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17770 + ... + 20379.

It is an arithmetic number, because the mean of its divisors is an integer number (3719625).

Almost surely, 2^49784445 is an apocalyptic number.

49784445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49784445 is a deficient number, since it is larger than the sum of its proper divisors (39486555).

49784445 is a wasteful number, since it uses less digits than its factorization.

49784445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38189 (or 38186 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 49784445 is about 7055.8093086477. The cubic root of 49784445 is about 367.8729796538.

The spelling of 49784445 in words is "forty-nine million, seven hundred eighty-four thousand, four hundred forty-five".