4449819942 has 16 divisors (see below), whose sum is σ = 9888488880. Its totient is φ = 1483273296.

The previous prime is 4449819917. The next prime is 4449819971. The reversal of 4449819942 is 2499189444.

It is a happy number.

4449819942 is a `hidden beast` number, since 4 + 449 + 8 + 199 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 82404073 = 4449819942 / (4 + 4 + 4 + 9 + 8 + 1 + 9 + 9 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41201983 + ... + 41202090.

It is an arithmetic number, because the mean of its divisors is an integer number (618030555).

Almost surely, 2^4449819942 is an apocalyptic number.

4449819942 is an abundant number, since it is smaller than the sum of its proper divisors (5438668938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4449819942 is a wasteful number, since it uses less digits than its factorization.

4449819942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82404084 (or 82404078 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 4449819942 is about 66706.9707152109. The cubic root of 4449819942 is about 1644.8039716768.

The spelling of 4449819942 in words is "four billion, four hundred forty-nine million, eight hundred nineteen thousand, nine hundred forty-two".