231466642 has 32 divisors (see below), whose sum is σ = 386362944. Its totient is φ = 103118400.

The previous prime is 231466633. The next prime is 231466643. The reversal of 231466642 is 246664132.

It is a junction number, because it is equal to n+sod(n) for n = 231466598 and 231466607.

It is not an unprimeable number, because it can be changed into a prime (231466643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549592 + ... + 550012.

It is an arithmetic number, because the mean of its divisors is an integer number (12073842).

Almost surely, 2^231466642 is an apocalyptic number.

231466642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231466642 is a deficient number, since it is larger than the sum of its proper divisors (154896302).

231466642 is a wasteful number, since it uses less digits than its factorization.

231466642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its digits is 41472, while the sum is 34.

The square root of 231466642 is about 15214.0278033136. The cubic root of 231466642 is about 613.9921289049.

The spelling of 231466642 in words is "two hundred thirty-one million, four hundred sixty-six thousand, six hundred forty-two".