1421303344 has 20 divisors (see below), whose sum is σ = 2756800240. Its totient is φ = 709871040.

The previous prime is 1421303321. The next prime is 1421303353. The reversal of 1421303344 is 4433031241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33627 + ... + 63034.

It is an arithmetic number, because the mean of its divisors is an integer number (137840012).

Almost surely, 2^1421303344 is an apocalyptic number.

It is an amenable number.

1421303344 is a deficient number, since it is larger than the sum of its proper divisors (1335496896).

1421303344 is an equidigital number, since it uses as much as digits as its factorization.

1421303344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97588 (or 97582 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1421303344 is about 37700.1769757119. The cubic root of 1421303344 is about 1124.3346436702.

Adding to 1421303344 its reverse (4433031241), we get a palindrome (5854334585).

The spelling of 1421303344 in words is "one billion, four hundred twenty-one million, three hundred three thousand, three hundred forty-four".