1444231402 has 8 divisors (see below), whose sum is σ = 2176062336. Its totient is φ = 718877292.

The previous prime is 1444231381. The next prime is 1444231409. The reversal of 1444231402 is 2041324441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1444231409) 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, 1618648 + ... + 1619539.

It is an arithmetic number, because the mean of its divisors is an integer number (272007792).

Almost surely, 2^1444231402 is an apocalyptic number.

1444231402 is a deficient number, since it is larger than the sum of its proper divisors (731830934).

1444231402 is a wasteful number, since it uses less digits than its factorization.

1444231402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238412.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1444231402 is about 38003.0446411863. The cubic root of 1444231402 is about 1130.3482368382.

Adding to 1444231402 its reverse (2041324441), we get a palindrome (3485555843).

The spelling of 1444231402 in words is "one billion, four hundred forty-four million, two hundred thirty-one thousand, four hundred two".