2158384146 has 8 divisors (see below), whose sum is σ = 4316768304. Its totient is φ = 719461380.

The previous prime is 2158384133. The next prime is 2158384169. The reversal of 2158384146 is 6414838512.

It is a happy number.

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

2158384146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2158384098 and 2158384107.

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, 179865340 + ... + 179865351.

It is an arithmetic number, because the mean of its divisors is an integer number (539596038).

Almost surely, 2^2158384146 is an apocalyptic number.

2158384146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2158384146 is a wasteful number, since it uses less digits than its factorization.

2158384146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359730696.

The product of its digits is 184320, while the sum is 42.

The square root of 2158384146 is about 46458.4130809480. The cubic root of 2158384146 is about 1292.3383954674.

The spelling of 2158384146 in words is "two billion, one hundred fifty-eight million, three hundred eighty-four thousand, one hundred forty-six".