420545013 has 8 divisors (see below), whose sum is σ = 640830528. Its totient is φ = 240311424.

The previous prime is 420545009. The next prime is 420545017. The reversal of 420545013 is 310545024.

It is an interprime number because it is at equal distance from previous prime (420545009) and next prime (420545017).

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

It is not a de Polignac number, because 420545013 - 2² = 420545009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420545017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012956 + ... + 10012997.

It is an arithmetic number, because the mean of its divisors is an integer number (80103816).

Almost surely, 2^420545013 is an apocalyptic number.

It is an amenable number.

420545013 is a deficient number, since it is larger than the sum of its proper divisors (220285515).

420545013 is a wasteful number, since it uses less digits than its factorization.

420545013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20025963.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 420545013 is about 20507.1941766786. The cubic root of 420545013 is about 749.2110298815.

The spelling of 420545013 in words is "four hundred twenty million, five hundred forty-five thousand, thirteen".