231404622 has 16 divisors (see below), whose sum is σ = 463814400. Its totient is φ = 76967352.

The previous prime is 231404603. The next prime is 231404651. The reversal of 231404622 is 226404132.

It is a junction number, because it is equal to n+sod(n) for n = 231404592 and 231404601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38872 + ... + 44427.

It is an arithmetic number, because the mean of its divisors is an integer number (28988400).

Almost surely, 2^231404622 is an apocalyptic number.

231404622 is an abundant number, since it is smaller than the sum of its proper divisors (232409778).

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

231404622 is a wasteful number, since it uses less digits than its factorization.

231404622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83767.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 231404622 is about 15211.9894162466. The cubic root of 231404622 is about 613.9372855905.

Adding to 231404622 its reverse (226404132), we get a palindrome (457808754).

The spelling of 231404622 in words is "two hundred thirty-one million, four hundred four thousand, six hundred twenty-two".