1426260621 has 8 divisors (see below), whose sum is σ = 1902011584. Its totient is φ = 950675040.

The previous prime is 1426260599. The next prime is 1426260643. The reversal of 1426260621 is 1260626241.

It is an interprime number because it is at equal distance from previous prime (1426260599) and next prime (1426260643).

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

It is a de Polignac number, because none of the positive numbers 2^k-1426260621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426260721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19585 + ... + 56886.

It is an arithmetic number, because the mean of its divisors is an integer number (237751448).

Almost surely, 2^1426260621 is an apocalyptic number.

It is an amenable number.

1426260621 is a deficient number, since it is larger than the sum of its proper divisors (475750963).

1426260621 is an equidigital number, since it uses as much as digits as its factorization.

1426260621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82691.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1426260621 is about 37765.8658182227. The cubic root of 1426260621 is about 1125.6402928914.

Adding to 1426260621 its reverse (1260626241), we get a palindrome (2686886862).

The spelling of 1426260621 in words is "one billion, four hundred twenty-six million, two hundred sixty thousand, six hundred twenty-one".