213323004 has 48 divisors (see below), whose sum is σ = 585597600. Its totient is φ = 66924288.

The previous prime is 213322981. The next prime is 213323029. The reversal of 213323004 is 400323312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 56259 + ... + 59930.

It is an arithmetic number, because the mean of its divisors is an integer number (12199950).

Almost surely, 2^213323004 is an apocalyptic number.

It is an amenable number.

213323004 is an abundant number, since it is smaller than the sum of its proper divisors (372274596).

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

213323004 is a wasteful number, since it uses less digits than its factorization.

213323004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116219 (or 116211 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213323004 is about 14605.5812619697. The cubic root of 213323004 is about 597.5109889846.

Adding to 213323004 its reverse (400323312), we get a palindrome (613646316).

It can be divided in two parts, 21332 and 3004, that added together give a square (24336 = 156²).

The spelling of 213323004 in words is "two hundred thirteen million, three hundred twenty-three thousand, four".