230432142440 has 32 divisors (see below), whose sum is σ = 518586705000. Its totient is φ = 92152521984.

The previous prime is 230432142407. The next prime is 230432142509. The reversal of 230432142440 is 44241234032.

It can be written as a sum of positive squares in 4 ways, for example, as 205428310564 + 25003831876 = 453242^2 + 158126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451235 + ... + 815154.

Almost surely, 2^230432142440 is an apocalyptic number.

230432142440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230432142440 is an abundant number, since it is smaller than the sum of its proper divisors (288154562560).

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

230432142440 is a wasteful number, since it uses less digits than its factorization.

230432142440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270949 (or 1270945 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 230432142440 its reverse (44241234032), we get a palindrome (274673376472).

The spelling of 230432142440 in words is "two hundred thirty billion, four hundred thirty-two million, one hundred forty-two thousand, four hundred forty".