231403038 has 32 divisors (see below), whose sum is σ = 474895872. Its totient is φ = 75129600.

The previous prime is 231403037. The next prime is 231403063. The reversal of 231403038 is 830304132.

It is a junction number, because it is equal to n+sod(n) for n = 231402999 and 231403017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231403037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110158 + ... + 112238.

It is an arithmetic number, because the mean of its divisors is an integer number (14840496).

Almost surely, 2^231403038 is an apocalyptic number.

231403038 is an abundant number, since it is smaller than the sum of its proper divisors (243492834).

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

231403038 is a wasteful number, since it uses less digits than its factorization.

231403038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 231403038 is about 15211.9373519615. The cubic root of 231403038 is about 613.9358847558.

The spelling of 231403038 in words is "two hundred thirty-one million, four hundred three thousand, thirty-eight".