1420623413 has 4 divisors (see below), whose sum is σ = 1549771008. Its totient is φ = 1291475820.

The previous prime is 1420623401. The next prime is 1420623427. The reversal of 1420623413 is 3143260241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1420623413 - 2⁸ = 1420623157 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 (1420623433) 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, 64573781 + ... + 64573802.

It is an arithmetic number, because the mean of its divisors is an integer number (387442752).

Almost surely, 2^1420623413 is an apocalyptic number.

It is an amenable number.

1420623413 is a deficient number, since it is larger than the sum of its proper divisors (129147595).

1420623413 is a wasteful number, since it uses less digits than its factorization.

1420623413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129147594.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1420623413 is about 37691.1582867919. The cubic root of 1420623413 is about 1124.1553265859.

Adding to 1420623413 its reverse (3143260241), we get a palindrome (4563883654).

The spelling of 1420623413 in words is "one billion, four hundred twenty million, six hundred twenty-three thousand, four hundred thirteen".