628418013 has 8 divisors (see below), whose sum is σ = 840265728. Its totient is φ = 417757824.

The previous prime is 628417997. The next prime is 628418051. The reversal of 628418013 is 310814826.

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

It is not a de Polignac number, because 628418013 - 2⁴ = 628417997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628418513) 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, 295645 + ... + 297762.

It is an arithmetic number, because the mean of its divisors is an integer number (105033216).

Almost surely, 2^628418013 is an apocalyptic number.

It is an amenable number.

628418013 is a deficient number, since it is larger than the sum of its proper divisors (211847715).

628418013 is a wasteful number, since it uses less digits than its factorization.

628418013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593763.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 628418013 is about 25068.2670521917. The cubic root of 628418013 is about 856.5437327233.

The spelling of 628418013 in words is "six hundred twenty-eight million, four hundred eighteen thousand, thirteen".