626332240 has 40 divisors (see below), whose sum is σ = 1457371008. Its totient is φ = 250335360.

The previous prime is 626332183. The next prime is 626332247. The reversal of 626332240 is 42233626.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 626332199 and 626332208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626332247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140445 + ... + 144835.

Almost surely, 2^626332240 is an apocalyptic number.

It is an amenable number.

626332240 is an abundant number, since it is smaller than the sum of its proper divisors (831038768).

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

626332240 is a wasteful number, since it uses less digits than its factorization.

626332240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6187 (or 6181 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 626332240 is about 25026.6306162056. The cubic root of 626332240 is about 855.5950351028.

Adding to 626332240 its reverse (42233626), we get a palindrome (668565866).

It can be divided in two parts, 6263 and 32240, that added together give a triangular number (38503 = T₂₇₇).

The spelling of 626332240 in words is "six hundred twenty-six million, three hundred thirty-two thousand, two hundred forty".