1229944441 has 16 divisors (see below), whose sum is σ = 1421841600. Its totient is φ = 1051502080.

The previous prime is 1229944421. The next prime is 1229944451. The reversal of 1229944441 is 1444499221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1229944441 - 2⁵ = 1229944409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1229944394 and 1229944403.

It is not an unprimeable number, because it can be changed into a prime (1229944421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354885 + ... + 358333.

It is an arithmetic number, because the mean of its divisors is an integer number (88865100).

Almost surely, 2^1229944441 is an apocalyptic number.

1229944441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1229944441 is a deficient number, since it is larger than the sum of its proper divisors (191897159).

1229944441 is a wasteful number, since it uses less digits than its factorization.

1229944441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384.

The product of its digits is 82944, while the sum is 40.

The square root of 1229944441 is about 35070.5637394097. The cubic root of 1229944441 is about 1071.4251371429.

The spelling of 1229944441 in words is "one billion, two hundred twenty-nine million, nine hundred forty-four thousand, four hundred forty-one".