49381369 has 4 divisors (see below), whose sum is σ = 49405300. Its totient is φ = 49357440.

The previous prime is 49381363. The next prime is 49381411. The reversal of 49381369 is 96318394.

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 24010000 + 25371369 = 4900^2 + 5037^2 .

It is a cyclic number.

It is not a de Polignac number, because 49381369 - 2⁵ = 49381337 is a prime.

It is a super-2 number, since 2×49381369² = 4877039208628322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49381363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8544 + ... + 13105.

It is an arithmetic number, because the mean of its divisors is an integer number (12351325).

Almost surely, 2^49381369 is an apocalyptic number.

It is an amenable number.

49381369 is a deficient number, since it is larger than the sum of its proper divisors (23931).

49381369 is a wasteful number, since it uses less digits than its factorization.

49381369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23930.

The product of its digits is 139968, while the sum is 43.

The square root of 49381369 is about 7027.1878443656. The cubic root of 49381369 is about 366.8774695081.

The spelling of 49381369 in words is "forty-nine million, three hundred eighty-one thousand, three hundred sixty-nine".