213058636 has 48 divisors (see below), whose sum is σ = 438197760. Its totient is φ = 88744320.

The previous prime is 213058633. The next prime is 213058697. The reversal of 213058636 is 636850312.

It is not an unprimeable number, because it can be changed into a prime (213058633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374160 + ... + 374728.

It is an arithmetic number, because the mean of its divisors is an integer number (9129120).

Almost surely, 2^213058636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213058636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219098880).

213058636 is an abundant number, since it is smaller than the sum of its proper divisors (225139124).

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

213058636 is a wasteful number, since it uses less digits than its factorization.

213058636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 213058636 is about 14596.5282173536. The cubic root of 213058636 is about 597.2640581477.

The spelling of 213058636 in words is "two hundred thirteen million, fifty-eight thousand, six hundred thirty-six".