1230140432 has 10 divisors (see below), whose sum is σ = 2383397118. Its totient is φ = 615070208.

The previous prime is 1230140423. The next prime is 1230140437. The reversal of 1230140432 is 2340410321.

It can be written as a sum of positive squares in only one way, i.e., 1185838096 + 44302336 = 34436^2 + 6656^2 .

It is a super-2 number, since 2×1230140432² = 3026490964882293248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1230140437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38441873 + ... + 38441904.

Almost surely, 2^1230140432 is an apocalyptic number.

It is an amenable number.

1230140432 is a deficient number, since it is larger than the sum of its proper divisors (1153256686).

1230140432 is an equidigital number, since it uses as much as digits as its factorization.

1230140432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76883785 (or 76883779 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1230140432 is about 35073.3578660498. The cubic root of 1230140432 is about 1071.4820444643.

Adding to 1230140432 its reverse (2340410321), we get a palindrome (3570550753).

The spelling of 1230140432 in words is "one billion, two hundred thirty million, one hundred forty thousand, four hundred thirty-two".