670135284 has 144 divisors (see below), whose sum is σ = 2094496768. Its totient is φ = 175924224.

The previous prime is 670135253. The next prime is 670135327. The reversal of 670135284 is 482531076.

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

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1103709 + ... + 1104315.

Almost surely, 2^670135284 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 670135284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1047248384).

670135284 is an abundant number, since it is smaller than the sum of its proper divisors (1424361484).

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

670135284 is a wasteful number, since it uses less digits than its factorization.

670135284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 670135284 is about 25886.9713176339. The cubic root of 670135284 is about 875.0929028976.

The spelling of 670135284 in words is "six hundred seventy million, one hundred thirty-five thousand, two hundred eighty-four".