49281789 has 16 divisors (see below), whose sum is σ = 66917312. Its totient is φ = 32254848.

The previous prime is 49281787. The next prime is 49281809. The reversal of 49281789 is 98718294.

It is not a de Polignac number, because 49281789 - 2¹ = 49281787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49281781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66867 + ... + 67599.

It is an arithmetic number, because the mean of its divisors is an integer number (4182332).

Almost surely, 2^49281789 is an apocalyptic number.

It is an amenable number.

49281789 is a deficient number, since it is larger than the sum of its proper divisors (17635523).

49281789 is a wasteful number, since it uses less digits than its factorization.

49281789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its digits is 290304, while the sum is 48.

The square root of 49281789 is about 7020.0989309268. The cubic root of 49281789 is about 366.6306946345.

The spelling of 49281789 in words is "forty-nine million, two hundred eighty-one thousand, seven hundred eighty-nine".