231366642 has 32 divisors (see below), whose sum is σ = 498930432. Its totient is φ = 71103744.

The previous prime is 231366613. The next prime is 231366673. The reversal of 231366642 is 246663132.

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, 100023 + ... + 102309.

It is an arithmetic number, because the mean of its divisors is an integer number (15591576).

Almost surely, 2^231366642 is an apocalyptic number.

231366642 is an abundant number, since it is smaller than the sum of its proper divisors (267563790).

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

231366642 is a wasteful number, since it uses less digits than its factorization.

231366642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602.

The product of its digits is 31104, while the sum is 33.

The square root of 231366642 is about 15210.7410075907. The cubic root of 231366642 is about 613.9036956336.

The spelling of 231366642 in words is "two hundred thirty-one million, three hundred sixty-six thousand, six hundred forty-two".