1300442421 has 32 divisors (see below), whose sum is σ = 1883502720. Its totient is φ = 794916864.

The previous prime is 1300442419. The next prime is 1300442443. The reversal of 1300442421 is 1242440031.

It is not a de Polignac number, because 1300442421 - 2¹ = 1300442419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300442401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1607065 + ... + 1607873.

It is an arithmetic number, because the mean of its divisors is an integer number (58859460).

Almost surely, 2^1300442421 is an apocalyptic number.

It is an amenable number.

1300442421 is a deficient number, since it is larger than the sum of its proper divisors (583060299).

1300442421 is a wasteful number, since it uses less digits than its factorization.

1300442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1300442421 is about 36061.6475081214. The cubic root of 1300442421 is about 1091.5166780266.

Adding to 1300442421 its reverse (1242440031), we get a palindrome (2542882452).

The spelling of 1300442421 in words is "one billion, three hundred million, four hundred forty-two thousand, four hundred twenty-one".