49481289 has 24 divisors (see below), whose sum is σ = 83970432. Its totient is φ = 27681120.

The previous prime is 49481269. The next prime is 49481291. The reversal of 49481289 is 98218494.

49481289 is a `hidden beast` number, since 494 + 81 + 2 + 89 = 666.

It is not a de Polignac number, because 49481289 - 2⁷ = 49481161 is a prime.

It is a super-2 number, since 2×49481289² = 4896795922203042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49481209) 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, 17937 + ... + 20510.

It is an arithmetic number, because the mean of its divisors is an integer number (3498768).

Almost surely, 2^49481289 is an apocalyptic number.

It is an amenable number.

49481289 is a deficient number, since it is larger than the sum of its proper divisors (34489143).

49481289 is a wasteful number, since it uses less digits than its factorization.

49481289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38477 (or 38474 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 49481289 is about 7034.2937811837. The cubic root of 49481289 is about 367.1247537232.

It can be divided in two parts, 49481 and 289, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 49481289 in words is "forty-nine million, four hundred eighty-one thousand, two hundred eighty-nine".