1629322994 has 8 divisors (see below), whose sum is σ = 2631983340. Its totient is φ = 751995216.

The previous prime is 1629322991. The next prime is 1629322997. The reversal of 1629322994 is 4992239261.

It is an interprime number because it is at equal distance from previous prime (1629322991) and next prime (1629322997).

It can be written as a sum of positive squares in 2 ways, for example, as 1577122369 + 52200625 = 39713^2 + 7225^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1629322991) 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, 31333109 + ... + 31333160.

Almost surely, 2^1629322994 is an apocalyptic number.

1629322994 is a deficient number, since it is larger than the sum of its proper divisors (1002660346).

1629322994 is a wasteful number, since it uses less digits than its factorization.

1629322994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62666284.

The product of its digits is 419904, while the sum is 47.

The square root of 1629322994 is about 40364.8732687222. The cubic root of 1629322994 is about 1176.7089649087.

The spelling of 1629322994 in words is "one billion, six hundred twenty-nine million, three hundred twenty-two thousand, nine hundred ninety-four".