1234721444 has 48 divisors (see below), whose sum is σ = 2438553600. Its totient is φ = 541946400.

The previous prime is 1234721431. The next prime is 1234721483. The reversal of 1234721444 is 4441274321.

It is a self number, because there is not a number n which added to its sum of digits gives 1234721444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980087 + ... + 981345.

It is an arithmetic number, because the mean of its divisors is an integer number (50803200).

Almost surely, 2^1234721444 is an apocalyptic number.

It is an amenable number.

1234721444 is a deficient number, since it is larger than the sum of its proper divisors (1203832156).

1234721444 is a wasteful number, since it uses less digits than its factorization.

1234721444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 2022 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 1234721444 is about 35138.6033302407. The cubic root of 1234721444 is about 1072.8104542246.

Adding to 1234721444 its reverse (4441274321), we get a palindrome (5675995765).

The spelling of 1234721444 in words is "one billion, two hundred thirty-four million, seven hundred twenty-one thousand, four hundred forty-four".