420522013 has 8 divisors (see below), whose sum is σ = 446548032. Its totient is φ = 394639296.

The previous prime is 420522001. The next prime is 420522023. The reversal of 420522013 is 310225024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420522013 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 (420522023) 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, 29745 + ... + 41542.

It is an arithmetic number, because the mean of its divisors is an integer number (55818504).

Almost surely, 2^420522013 is an apocalyptic number.

It is an amenable number.

420522013 is a deficient number, since it is larger than the sum of its proper divisors (26026019).

420522013 is a wasteful number, since it uses less digits than its factorization.

420522013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71651.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 420522013 is about 20506.6333901984. The cubic root of 420522013 is about 749.1973712819.

Adding to 420522013 its reverse (310225024), we get a palindrome (730747037).

The spelling of 420522013 in words is "four hundred twenty million, five hundred twenty-two thousand, thirteen".