231996622 has 64 divisors (see below), whose sum is σ = 427327488. Its totient is φ = 93024000.

The previous prime is 231996617. The next prime is 231996643. The reversal of 231996622 is 226699132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1214547 + ... + 1214737.

It is an arithmetic number, because the mean of its divisors is an integer number (6676992).

Almost surely, 2^231996622 is an apocalyptic number.

231996622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231996622 is a deficient number, since it is larger than the sum of its proper divisors (195330866).

231996622 is a wasteful number, since it uses less digits than its factorization.

231996622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 69984, while the sum is 40.

The square root of 231996622 is about 15231.4353230416. The cubic root of 231996622 is about 614.4603828565.

The spelling of 231996622 in words is "two hundred thirty-one million, nine hundred ninety-six thousand, six hundred twenty-two".