1670211328 has 36 divisors (see below), whose sum is σ = 3356350200. Its totient is φ = 829481984.

The previous prime is 1670211287. The next prime is 1670211331. The reversal of 1670211328 is 8231120761.

It is a self number, because there is not a number n which added to its sum of digits gives 1670211328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16251 + ... + 60037.

It is an arithmetic number, because the mean of its divisors is an integer number (93231950).

Almost surely, 2^1670211328 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 1670211328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678175100).

1670211328 is an abundant number, since it is smaller than the sum of its proper divisors (1686138872).

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

1670211328 is an equidigital number, since it uses as much as digits as its factorization.

1670211328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43952 (or 43938 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1670211328 is about 40868.2190460999. The cubic root of 1670211328 is about 1186.4710384636.

The spelling of 1670211328 in words is "one billion, six hundred seventy million, two hundred eleven thousand, three hundred twenty-eight".