4449093381 has 12 divisors (see below), whose sum is σ = 6427259020. Its totient is φ = 2965697280.

The previous prime is 4449093359. The next prime is 4449093413. The reversal of 4449093381 is 1833909444.

It is a happy number.

4449093381 is a `hidden beast` number, since 44 + 490 + 93 + 38 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 89132481 + 4359960900 = 9441^2 + 66030^2 .

It is not a de Polignac number, because 4449093381 - 2¹⁰ = 4449092357 is a prime.

It is a super-2 number, since 2×4449093381² = 39588863825716022322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449093281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61365 + ... + 112533.

Almost surely, 2^4449093381 is an apocalyptic number.

It is an amenable number.

4449093381 is a deficient number, since it is larger than the sum of its proper divisors (1978165639).

4449093381 is a wasteful number, since it uses less digits than its factorization.

4449093381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60836 (or 60833 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 4449093381 is about 66701.5245777786. The cubic root of 4449093381 is about 1644.7144462965.

The spelling of 4449093381 in words is "four billion, four hundred forty-nine million, ninety-three thousand, three hundred eighty-one".