42620013 has 12 divisors (see below), whose sum is σ = 63842688. Its totient is φ = 28413180.

The previous prime is 42619999. The next prime is 42620027. The reversal of 42620013 is 31002624.

It is a happy number.

42620013 is a `hidden beast` number, since 42 + 620 + 0 + 1 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (42619999) and next prime (42620027).

It is not a de Polignac number, because 42620013 - 2⁹ = 42619501 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 (42620063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87453 + ... + 87938.

It is an arithmetic number, because the mean of its divisors is an integer number (5320224).

Almost surely, 2^42620013 is an apocalyptic number.

It is an amenable number.

42620013 is a deficient number, since it is larger than the sum of its proper divisors (21222675).

42620013 is an equidigital number, since it uses as much as digits as its factorization.

42620013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175406 (or 175394 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 42620013 is about 6528.4004932296. The cubic root of 42620013 is about 349.3047777834.

Adding to 42620013 its reverse (31002624), we get a palindrome (73622637).

The spelling of 42620013 in words is "forty-two million, six hundred twenty thousand, thirteen".