232403140 has 12 divisors (see below), whose sum is σ = 488046636. Its totient is φ = 92961248.

The previous prime is 232403137. The next prime is 232403167. The reversal of 232403140 is 41304232.

It can be written as a sum of positive squares in 2 ways, for example, as 178115716 + 54287424 = 13346^2 + 7368^2 .

It is a super-2 number, since 2×232403140² = 108022438963719200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5810059 + ... + 5810098.

It is an arithmetic number, because the mean of its divisors is an integer number (40670553).

Almost surely, 2^232403140 is an apocalyptic number.

232403140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232403140 is an abundant number, since it is smaller than the sum of its proper divisors (255643496).

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

232403140 is a wasteful number, since it uses less digits than its factorization.

232403140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11620166 (or 11620164 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 232403140 is about 15244.7741865860. The cubic root of 232403140 is about 614.8190711961.

Adding to 232403140 its reverse (41304232), we get a palindrome (273707372).

The spelling of 232403140 in words is "two hundred thirty-two million, four hundred three thousand, one hundred forty".