213404040324 has 36 divisors (see below), whose sum is σ = 567829465840. Its totient is φ = 67390749360.

The previous prime is 213404040301. The next prime is 213404040329. The reversal of 213404040324 is 423040404312.

It is a happy number.

213404040324 is a `hidden beast` number, since 213 + 4 + 0 + 40 + 403 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (213404040329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155996422 + ... + 155997789.

Almost surely, 2^213404040324 is an apocalyptic number.

It is an amenable number.

213404040324 is an abundant number, since it is smaller than the sum of its proper divisors (354425425516).

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

213404040324 is a wasteful number, since it uses less digits than its factorization.

213404040324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311994240 (or 311994235 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 213404040324 its reverse (423040404312), we get a palindrome (636444444636).

The spelling of 213404040324 in words is "two hundred thirteen billion, four hundred four million, forty thousand, three hundred twenty-four".