1641996830 has 32 divisors (see below), whose sum is σ = 3000723840. Its totient is φ = 646813440.

The previous prime is 1641996817. The next prime is 1641996857. The reversal of 1641996830 is 386991461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330122 + ... + 335058.

It is an arithmetic number, because the mean of its divisors is an integer number (93772620).

Almost surely, 2^1641996830 is an apocalyptic number.

1641996830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1641996830 is a deficient number, since it is larger than the sum of its proper divisors (1358727010).

1641996830 is a wasteful number, since it uses less digits than its factorization.

1641996830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5444.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1641996830 is about 40521.5600637488. The cubic root of 1641996830 is about 1179.7521336124.

The spelling of 1641996830 in words is "one billion, six hundred forty-one million, nine hundred ninety-six thousand, eight hundred thirty".