1449219644 has 12 divisors (see below), whose sum is σ = 2536978584. Its totient is φ = 724368624.

The previous prime is 1449219643. The next prime is 1449219647. The reversal of 1449219644 is 4469129441.

It is a junction number, because it is equal to n+sod(n) for n = 1449219595 and 1449219604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449219641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46427 + ... + 71090.

It is an arithmetic number, because the mean of its divisors is an integer number (211414882).

Almost surely, 2^1449219644 is an apocalyptic number.

It is an amenable number.

1449219644 is a deficient number, since it is larger than the sum of its proper divisors (1087758940).

1449219644 is a wasteful number, since it uses less digits than its factorization.

1449219644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120604 (or 120602 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 1449219644 is about 38068.6175740596. The cubic root of 1449219644 is about 1131.6481142694.

The spelling of 1449219644 in words is "one billion, four hundred forty-nine million, two hundred nineteen thousand, six hundred forty-four".