231622430 has 32 divisors (see below), whose sum is σ = 455160384. Its totient is φ = 84347136.

The previous prime is 231622427. The next prime is 231622471. The reversal of 231622430 is 34226132.

It is a junction number, because it is equal to n+sod(n) for n = 231622396 and 231622405.

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, 2714 + ... + 21693.

It is an arithmetic number, because the mean of its divisors is an integer number (14223762).

Almost surely, 2^231622430 is an apocalyptic number.

231622430 is a deficient number, since it is larger than the sum of its proper divisors (223537954).

231622430 is a wasteful number, since it uses less digits than its factorization.

231622430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24500.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 231622430 is about 15219.1468223419. The cubic root of 231622430 is about 614.1298465956.

Adding to 231622430 its reverse (34226132), we get a palindrome (265848562).

The spelling of 231622430 in words is "two hundred thirty-one million, six hundred twenty-two thousand, four hundred thirty".