213434422240 has 96 divisors (see below), whose sum is σ = 554580432000. Its totient is φ = 77129785344.

The previous prime is 213434422237. The next prime is 213434422249. The reversal of 213434422240 is 42224434312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213434422249) 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, 993865 + ... + 1189384.

It is an arithmetic number, because the mean of its divisors is an integer number (5776879500).

Almost surely, 2^213434422240 is an apocalyptic number.

213434422240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213434422240 is an abundant number, since it is smaller than the sum of its proper divisors (341146009760).

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

213434422240 is a wasteful number, since it uses less digits than its factorization.

213434422240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183324 (or 2183316 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 213434422240 its reverse (42224434312), we get a palindrome (255658856552).

The spelling of 213434422240 in words is "two hundred thirteen billion, four hundred thirty-four million, four hundred twenty-two thousand, two hundred forty".