213402444430 has 32 divisors (see below), whose sum is σ = 441424751040. Its totient is φ = 72762312960.

The previous prime is 213402444407. The next prime is 213402444443. The reversal of 213402444430 is 34444204312.

It is a junction number, because it is equal to n+sod(n) for n = 213402444392 and 213402444401.

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, 8408895 + ... + 8434234.

It is an arithmetic number, because the mean of its divisors is an integer number (13794523470).

Almost surely, 2^213402444430 is an apocalyptic number.

213402444430 is an abundant number, since it is smaller than the sum of its proper divisors (228022306610).

213402444430 is a wasteful number, since it uses less digits than its factorization.

213402444430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16843324.

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

Adding to 213402444430 its reverse (34444204312), we get a palindrome (247846648742).

The spelling of 213402444430 in words is "two hundred thirteen billion, four hundred two million, four hundred forty-four thousand, four hundred thirty".