49281447 has 16 divisors (see below), whose sum is σ = 68099040. Its totient is φ = 31675392.

The previous prime is 49281443. The next prime is 49281481. The reversal of 49281447 is 74418294.

It is not a de Polignac number, because 49281447 - 2² = 49281443 is a prime.

It is a super-2 number, since 2×49281447² = 4857322036827618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49281443) 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 15 ways as a sum of consecutive naturals, for example, 10579 + ... + 14507.

It is an arithmetic number, because the mean of its divisors is an integer number (4256190).

Almost surely, 2^49281447 is an apocalyptic number.

49281447 is a deficient number, since it is larger than the sum of its proper divisors (18817593).

49281447 is a wasteful number, since it uses less digits than its factorization.

49281447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082.

The product of its digits is 64512, while the sum is 39.

The square root of 49281447 is about 7020.0745722535. The cubic root of 49281447 is about 366.6298465323.

The spelling of 49281447 in words is "forty-nine million, two hundred eighty-one thousand, four hundred forty-seven".