49442289 has 16 divisors (see below), whose sum is σ = 71198400. Its totient is φ = 30338496.

The previous prime is 49442287. The next prime is 49442293. The reversal of 49442289 is 98224494.

It is not a de Polignac number, because 49442289 - 2¹ = 49442287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49442289.

It is not an unprimeable number, because it can be changed into a prime (49442287) 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, 13542 + ... + 16800.

It is an arithmetic number, because the mean of its divisors is an integer number (4449900).

Almost surely, 2^49442289 is an apocalyptic number.

It is an amenable number.

49442289 is a deficient number, since it is larger than the sum of its proper divisors (21756111).

49442289 is a wasteful number, since it uses less digits than its factorization.

49442289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664.

The product of its digits is 165888, while the sum is 42.

The square root of 49442289 is about 7031.5211014403. The cubic root of 49442289 is about 367.0282753101.

The spelling of 49442289 in words is "forty-nine million, four hundred forty-two thousand, two hundred eighty-nine".