213420736 has 28 divisors (see below), whose sum is σ = 434957728. Its totient is φ = 103825152.

The previous prime is 213420733. The next prime is 213420743. The reversal of 213420736 is 637024312.

It is not an unprimeable number, because it can be changed into a prime (213420733) 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 3 ways as a sum of consecutive naturals, for example, 42696 + ... + 47431.

Almost surely, 2^213420736 is an apocalyptic number.

It is an amenable number.

213420736 is an abundant number, since it is smaller than the sum of its proper divisors (221536992).

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

213420736 is an equidigital number, since it uses as much as digits as its factorization.

213420736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90176 (or 90166 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 213420736 is about 14608.9265861664. The cubic root of 213420736 is about 597.6022231339.

The spelling of 213420736 in words is "two hundred thirteen million, four hundred twenty thousand, seven hundred thirty-six".