626413345 has 16 divisors (see below), whose sum is σ = 757470672. Its totient is φ = 497295360.

The previous prime is 626413343. The next prime is 626413393. The reversal of 626413345 is 543314626.

It can be written as a sum of positive squares in 8 ways, for example, as 350288656 + 276124689 = 18716^2 + 16617^2 .

It is not a de Polignac number, because 626413345 - 2¹ = 626413343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 626413345.

It is not an unprimeable number, because it can be changed into a prime (626413343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733939 + ... + 734791.

It is an arithmetic number, because the mean of its divisors is an integer number (47341917).

Almost surely, 2^626413345 is an apocalyptic number.

It is an amenable number.

626413345 is a deficient number, since it is larger than the sum of its proper divisors (131057327).

626413345 is a wasteful number, since it uses less digits than its factorization.

626413345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its digits is 51840, while the sum is 34.

The square root of 626413345 is about 25028.2509376904. The cubic root of 626413345 is about 855.6319644063.

The spelling of 626413345 in words is "six hundred twenty-six million, four hundred thirteen thousand, three hundred forty-five".