2158272000 has 320 divisors, whose sum is σ = 7979400000. Its totient is φ = 575078400.

The previous prime is 2158271977. The next prime is 2158272013. The reversal of 2158272000 is 2728512.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1727376 + ... + 1728624.

It is an arithmetic number, because the mean of its divisors is an integer number (24935625).

Almost surely, 2^2158272000 is an apocalyptic number.

2158272000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2158272000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3989700000).

2158272000 is an abundant number, since it is smaller than the sum of its proper divisors (5821128000).

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

2158272000 is an equidigital number, since it uses as much as digits as its factorization.

2158272000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 2158272000 is about 46457.2061148752. The cubic root of 2158272000 is about 1292.3160125053.

The spelling of 2158272000 in words is "two billion, one hundred fifty-eight million, two hundred seventy-two thousand".