231642046 has 8 divisors (see below), whose sum is σ = 355937904. Its totient is φ = 112996080.

The previous prime is 231642041. The next prime is 231642077. The reversal of 231642046 is 640246132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×231642046² = 107316074950132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231642041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412370 + ... + 1412533.

It is an arithmetic number, because the mean of its divisors is an integer number (44492238).

Almost surely, 2^231642046 is an apocalyptic number.

231642046 is a deficient number, since it is larger than the sum of its proper divisors (124295858).

231642046 is a wasteful number, since it uses less digits than its factorization.

231642046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824946.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 231642046 is about 15219.7912600666. The cubic root of 231642046 is about 614.1471829002.

Adding to 231642046 its reverse (640246132), we get a palindrome (871888178).

The spelling of 231642046 in words is "two hundred thirty-one million, six hundred forty-two thousand, forty-six".