1230443442 has 48 divisors (see below), whose sum is σ = 2876079960. Its totient is φ = 378733056.

The previous prime is 1230443411. The next prime is 1230443447. The reversal of 1230443442 is 2443440321.

It is a happy number.

1230443442 is a `hidden beast` number, since 12 + 304 + 4 + 344 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1227170961 + 3272481 = 35031^2 + 1809^2 .

It is not an unprimeable number, because it can be changed into a prime (1230443447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21717 + ... + 54152.

Almost surely, 2^1230443442 is an apocalyptic number.

1230443442 is an abundant number, since it is smaller than the sum of its proper divisors (1645636518).

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

1230443442 is a wasteful number, since it uses less digits than its factorization.

1230443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75947 (or 75944 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1230443442 is about 35077.6772606169. The cubic root of 1230443442 is about 1071.5700135861.

Adding to 1230443442 its reverse (2443440321), we get a palindrome (3673883763).

The spelling of 1230443442 in words is "one billion, two hundred thirty million, four hundred forty-three thousand, four hundred forty-two".