2158329398 has 8 divisors (see below), whose sum is σ = 3269548800. Its totient is φ = 1068479800.

The previous prime is 2158329331. The next prime is 2158329409. The reversal of 2158329398 is 8939238512.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5342198 + ... + 5342601.

It is an arithmetic number, because the mean of its divisors is an integer number (408693600).

Almost surely, 2^2158329398 is an apocalyptic number.

2158329398 is a deficient number, since it is larger than the sum of its proper divisors (1111219402).

2158329398 is a wasteful number, since it uses less digits than its factorization.

2158329398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684902.

The product of its digits is 933120, while the sum is 50.

The square root of 2158329398 is about 46457.8238620795. The cubic root of 2158329398 is about 1292.3274685369.

The spelling of 2158329398 in words is "two billion, one hundred fifty-eight million, three hundred twenty-nine thousand, three hundred ninety-eight".