670235544 has 96 divisors (see below), whose sum is σ = 1998032400. Its totient is φ = 201277440.

The previous prime is 670235543. The next prime is 670235549. The reversal of 670235544 is 445532076.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 670235499 and 670235508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670235543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85752 + ... + 93240.

Almost surely, 2^670235544 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 670235544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (999016200).

670235544 is an abundant number, since it is smaller than the sum of its proper divisors (1327796856).

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

670235544 is a wasteful number, since it uses less digits than its factorization.

670235544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625 (or 7618 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 670235544 is about 25888.9077405749. The cubic root of 670235544 is about 875.1365420659.

The spelling of 670235544 in words is "six hundred seventy million, two hundred thirty-five thousand, five hundred forty-four".