1641423299 has 4 divisors (see below), whose sum is σ = 1644128064. Its totient is φ = 1638718536.

The previous prime is 1641423293. The next prime is 1641423307. The reversal of 1641423299 is 9923241461.

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

It is a cyclic number.

It is not a de Polignac number, because 1641423299 - 2¹² = 1641419203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641423293) 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, 1351472 + ... + 1352685.

It is an arithmetic number, because the mean of its divisors is an integer number (411032016).

Almost surely, 2^1641423299 is an apocalyptic number.

1641423299 is a deficient number, since it is larger than the sum of its proper divisors (2704765).

1641423299 is an equidigital number, since it uses as much as digits as its factorization.

1641423299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704764.

The product of its digits is 93312, while the sum is 41.

The square root of 1641423299 is about 40514.4825833923. The cubic root of 1641423299 is about 1179.6147595722.

The spelling of 1641423299 in words is "one billion, six hundred forty-one million, four hundred twenty-three thousand, two hundred ninety-nine".