1690330929 has 8 divisors (see below), whose sum is σ = 2575742400. Its totient is φ = 965903376.

The previous prime is 1690330921. The next prime is 1690330931. The reversal of 1690330929 is 9290330961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1690330929 - 2³ = 1690330921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1690330921) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 40245954 + ... + 40245995.

It is an arithmetic number, because the mean of its divisors is an integer number (321967800).

Almost surely, 2^1690330929 is an apocalyptic number.

It is an amenable number.

1690330929 is a deficient number, since it is larger than the sum of its proper divisors (885411471).

1690330929 is an equidigital number, since it uses as much as digits as its factorization.

1690330929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80491959.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 1690330929 is about 41113.6343443389. The cubic root of 1690330929 is about 1191.2161681001.

The spelling of 1690330929 in words is "one billion, six hundred ninety million, three hundred thirty thousand, nine hundred twenty-nine".