2158288090 has 32 divisors (see below), whose sum is σ = 4673589120. Its totient is φ = 701037504.

The previous prime is 2158288073. The next prime is 2158288117. The reversal of 2158288090 is 908828512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810057 + ... + 812716.

It is an arithmetic number, because the mean of its divisors is an integer number (146049660).

Almost surely, 2^2158288090 is an apocalyptic number.

2158288090 is an abundant number, since it is smaller than the sum of its proper divisors (2515301030).

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

2158288090 is a wasteful number, since it uses less digits than its factorization.

2158288090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622806.

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 2158288090 is about 46457.3792846734. The cubic root of 2158288090 is about 1292.3192239190.

The spelling of 2158288090 in words is "two billion, one hundred fifty-eight million, two hundred eighty-eight thousand, ninety".