49389489 has 24 divisors (see below), whose sum is σ = 72607392. Its totient is φ = 32348160.

The previous prime is 49389467. The next prime is 49389497. The reversal of 49389489 is 98498394.

It is a de Polignac number, because none of the positive numbers 2^k-49389489 is a prime.

It is a super-2 number, since 2×49389489² = 4878643247362242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49389409) 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, 192049 + ... + 192305.

It is an arithmetic number, because the mean of its divisors is an integer number (3025308).

Almost surely, 2^49389489 is an apocalyptic number.

It is an amenable number.

49389489 is a deficient number, since it is larger than the sum of its proper divisors (23217903).

49389489 is a wasteful number, since it uses less digits than its factorization.

49389489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 554 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 49389489 is about 7027.7655766253. The cubic root of 49389489 is about 366.8975775086.

The spelling of 49389489 in words is "forty-nine million, three hundred eighty-nine thousand, four hundred eighty-nine".