49840281 has 12 divisors (see below), whose sum is σ = 74314240. Its totient is φ = 32154840.

The previous prime is 49840253. The next prime is 49840283. The reversal of 49840281 is 18204894.

It is a de Polignac number, because none of the positive numbers 2^k-49840281 is a prime.

It is a super-2 number, since 2×49840281² = 4968107220317922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49840283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89041 + ... + 89598.

Almost surely, 2^49840281 is an apocalyptic number.

It is an amenable number.

49840281 is a deficient number, since it is larger than the sum of its proper divisors (24473959).

49840281 is a wasteful number, since it uses less digits than its factorization.

49840281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178676 (or 178673 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 49840281 is about 7059.7649394296. The cubic root of 49840281 is about 368.0104582133.

The spelling of 49840281 in words is "forty-nine million, eight hundred forty thousand, two hundred eighty-one".