670351752 has 144 divisors (see below), whose sum is σ = 2236382460. Its totient is φ = 180246528.

The previous prime is 670351751. The next prime is 670351777. The reversal of 670351752 is 257153076.

It can be written as a sum of positive squares in 2 ways, for example, as 587286756 + 83064996 = 24234^2 + 9114^2 .

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

It is not an unprimeable number, because it can be changed into a prime (670351751) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 54388 + ... + 65564.

Almost surely, 2^670351752 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 670351752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118191230).

670351752 is an abundant number, since it is smaller than the sum of its proper divisors (1566030708).

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

670351752 is a wasteful number, since it uses less digits than its factorization.

670351752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11220 (or 11206 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 670351752 is about 25891.1520021802. The cubic root of 670351752 is about 875.1871173157.

The spelling of 670351752 in words is "six hundred seventy million, three hundred fifty-one thousand, seven hundred fifty-two".