1629238893 has 16 divisors (see below), whose sum is σ = 2204079936. Its totient is φ = 1070305920.

The previous prime is 1629238889. The next prime is 1629238909. The reversal of 1629238893 is 3988329261.

It is not a de Polignac number, because 1629238893 - 2² = 1629238889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629238693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299746 + ... + 305132.

It is an arithmetic number, because the mean of its divisors is an integer number (137754996).

Almost surely, 2^1629238893 is an apocalyptic number.

It is an amenable number.

1629238893 is a deficient number, since it is larger than the sum of its proper divisors (574841043).

1629238893 is a wasteful number, since it uses less digits than its factorization.

1629238893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844.

The product of its digits is 1119744, while the sum is 51.

The square root of 1629238893 is about 40363.8314955357. The cubic root of 1629238893 is about 1176.6887184415.

The spelling of 1629238893 in words is "one billion, six hundred twenty-nine million, two hundred thirty-eight thousand, eight hundred ninety-three".