670012530 has 64 divisors (see below), whose sum is σ = 1757058048. Its totient is φ = 162164160.

The previous prime is 670012507. The next prime is 670012531. The reversal of 670012530 is 35210076.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 670012530.

It is not an unprimeable number, because it can be changed into a prime (670012531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270357 + ... + 272823.

It is an arithmetic number, because the mean of its divisors is an integer number (27454032).

Almost surely, 2^670012530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670012530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878529024).

670012530 is an abundant number, since it is smaller than the sum of its proper divisors (1087045518).

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

670012530 is a wasteful number, since it uses less digits than its factorization.

670012530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 670012530 is about 25884.6002480239. The cubic root of 670012530 is about 875.0394670633.

The spelling of 670012530 in words is "six hundred seventy million, twelve thousand, five hundred thirty".