626866240 has 448 divisors, whose sum is σ = 2130186240. Its totient is φ = 169205760.

The previous prime is 626866237. The next prime is 626866243. The reversal of 626866240 is 42668626.

It is an interprime number because it is at equal distance from previous prime (626866237) and next prime (626866243).

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×626866240² = 785922565703475200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 626866193 and 626866202.

It is not an unprimeable number, because it can be changed into a prime (626866243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6086029 + ... + 6086131.

It is an arithmetic number, because the mean of its divisors is an integer number (4754880).

Almost surely, 2^626866240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 626866240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065093120).

626866240 is an abundant number, since it is smaller than the sum of its proper divisors (1503320000).

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

626866240 is a wasteful number, since it uses less digits than its factorization.

626866240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 626866240 is about 25037.2969787076. The cubic root of 626866240 is about 855.8381211926.

The spelling of 626866240 in words is "six hundred twenty-six million, eight hundred sixty-six thousand, two hundred forty".