49044421 has 2 divisors, whose sum is σ = 49044422. Its totient is φ = 49044420.

The previous prime is 49044419. The next prime is 49044431. The reversal of 49044421 is 12444094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34680321 + 14364100 = 5889^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 49044421 - 2¹ = 49044419 is a prime.

Together with 49044419, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 49044421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49044431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24522210 + 24522211.

It is an arithmetic number, because the mean of its divisors is an integer number (24522211).

Almost surely, 2^49044421 is an apocalyptic number.

It is an amenable number.

49044421 is a deficient number, since it is larger than the sum of its proper divisors (1).

49044421 is an equidigital number, since it uses as much as digits as its factorization.

49044421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 49044421 is about 7003.1722097918. The cubic root of 49044421 is about 366.0411158484.

The spelling of 49044421 in words is "forty-nine million, forty-four thousand, four hundred twenty-one".