626214340 has 12 divisors (see below), whose sum is σ = 1315050156. Its totient is φ = 250485728.

The previous prime is 626214317. The next prime is 626214343. The reversal of 626214340 is 43412626.

It can be written as a sum of positive squares in 2 ways, for example, as 83137924 + 543076416 = 9118^2 + 23304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 626214299 and 626214308.

It is not an unprimeable number, because it can be changed into a prime (626214343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15655339 + ... + 15655378.

It is an arithmetic number, because the mean of its divisors is an integer number (109587513).

Almost surely, 2^626214340 is an apocalyptic number.

It is an amenable number.

626214340 is an abundant number, since it is smaller than the sum of its proper divisors (688835816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

626214340 is a wasteful number, since it uses less digits than its factorization.

626214340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31310726 (or 31310724 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 626214340 is about 25024.2750144734. The cubic root of 626214340 is about 855.5413463530.

Adding to 626214340 its reverse (43412626), we get a palindrome (669626966).

It can be divided in two parts, 6262 and 14340, that added together give a palindrome (20602).

The spelling of 626214340 in words is "six hundred twenty-six million, two hundred fourteen thousand, three hundred forty".