2157338586 has 32 divisors (see below), whose sum is σ = 4683184128. Its totient is φ = 658566720.

The previous prime is 2157338581. The next prime is 2157338593. The reversal of 2157338586 is 6858337512.

2157338586 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2157338581) 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, 98985 + ... + 118796.

It is an arithmetic number, because the mean of its divisors is an integer number (146349504).

Almost surely, 2^2157338586 is an apocalyptic number.

2157338586 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2157338586 is an abundant number, since it is smaller than the sum of its proper divisors (2525845542).

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

2157338586 is a wasteful number, since it uses less digits than its factorization.

2157338586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217926.

The product of its digits is 1209600, while the sum is 48.

The square root of 2157338586 is about 46447.1590735106. The cubic root of 2157338586 is about 1292.1296844619.

The spelling of 2157338586 in words is "two billion, one hundred fifty-seven million, three hundred thirty-eight thousand, five hundred eighty-six".