420234013 has 4 divisors (see below), whose sum is σ = 420366528. Its totient is φ = 420101500.

The previous prime is 420233993. The next prime is 420234029. The reversal of 420234013 is 310432024.

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 420234013 - 2⁵ = 420233981 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 (420234043) 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, 61381 + ... + 67882.

It is an arithmetic number, because the mean of its divisors is an integer number (105091632).

Almost surely, 2^420234013 is an apocalyptic number.

It is an amenable number.

420234013 is a deficient number, since it is larger than the sum of its proper divisors (132515).

420234013 is a wasteful number, since it uses less digits than its factorization.

420234013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132514.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 420234013 is about 20499.6100694623. The cubic root of 420234013 is about 749.0262996832.

Adding to 420234013 its reverse (310432024), we get a palindrome (730666037).

The spelling of 420234013 in words is "four hundred twenty million, two hundred thirty-four thousand, thirteen".