1420240013 has 4 divisors (see below), whose sum is σ = 1429645728. Its totient is φ = 1410834300.

The previous prime is 1420240007. The next prime is 1420240021. The reversal of 1420240013 is 3100420241.

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 1420240013 - 2¹⁶ = 1420174477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420239973 and 1420240000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420240033) 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, 4702631 + ... + 4702932.

It is an arithmetic number, because the mean of its divisors is an integer number (357411432).

Almost surely, 2^1420240013 is an apocalyptic number.

It is an amenable number.

1420240013 is a deficient number, since it is larger than the sum of its proper divisors (9405715).

1420240013 is an equidigital number, since it uses as much as digits as its factorization.

1420240013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405714.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1420240013 is about 37686.0718701220. The cubic root of 1420240013 is about 1124.0541879057.

Adding to 1420240013 its reverse (3100420241), we get a palindrome (4520660254).

The spelling of 1420240013 in words is "one billion, four hundred twenty million, two hundred forty thousand, thirteen".