1670441329 has 4 divisors (see below), whose sum is σ = 1673440884. Its totient is φ = 1667441776.

The previous prime is 1670441281. The next prime is 1670441347. The reversal of 1670441329 is 9231440761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 363474225 + 1306967104 = 19065^2 + 36152^2 .

It is a cyclic number.

It is not a de Polignac number, because 1670441329 - 2²¹ = 1668344177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670442329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498942 + ... + 1500055.

It is an arithmetic number, because the mean of its divisors is an integer number (418360221).

Almost surely, 2^1670441329 is an apocalyptic number.

It is an amenable number.

1670441329 is a deficient number, since it is larger than the sum of its proper divisors (2999555).

1670441329 is an equidigital number, since it uses as much as digits as its factorization.

1670441329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999554.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1670441329 is about 40871.0328839387. The cubic root of 1670441329 is about 1186.5254980391.

The spelling of 1670441329 in words is "one billion, six hundred seventy million, four hundred forty-one thousand, three hundred twenty-nine".