49016389 has 4 divisors (see below), whose sum is σ = 51899724. Its totient is φ = 46133056.

The previous prime is 49016377. The next prime is 49016393. The reversal of 49016389 is 98361094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15665764 + 33350625 = 3958^2 + 5775^2 .

It is a cyclic number.

It is not a de Polignac number, because 49016389 - 2¹¹ = 49014341 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49016309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1441642 + ... + 1441675.

It is an arithmetic number, because the mean of its divisors is an integer number (12974931).

Almost surely, 2^49016389 is an apocalyptic number.

It is an amenable number.

49016389 is a deficient number, since it is larger than the sum of its proper divisors (2883335).

49016389 is a wasteful number, since it uses less digits than its factorization.

49016389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883334.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 49016389 is about 7001.1705449875. The cubic root of 49016389 is about 365.9713639793.

The spelling of 49016389 in words is "forty-nine million, sixteen thousand, three hundred eighty-nine".