49217445 has 24 divisors (see below), whose sum is σ = 86275800. Its totient is φ = 25952256.

The previous prime is 49217407. The next prime is 49217449. The reversal of 49217445 is 54471294.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4901796 + 44315649 = 2214^2 + 6657^2 .

It is not a de Polignac number, because 49217445 - 2⁷ = 49217317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49217449) 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 23 ways as a sum of consecutive naturals, for example, 2140 + ... + 10149.

It is an arithmetic number, because the mean of its divisors is an integer number (3594825).

Almost surely, 2^49217445 is an apocalyptic number.

49217445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49217445 is a deficient number, since it is larger than the sum of its proper divisors (37058355).

49217445 is a wasteful number, since it uses less digits than its factorization.

49217445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12389 (or 12386 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 49217445 is about 7015.5145926724. The cubic root of 49217445 is about 366.4710632561.

The spelling of 49217445 in words is "forty-nine million, two hundred seventeen thousand, four hundred forty-five".