1230443642 has 32 divisors (see below), whose sum is σ = 1895467392. Its totient is φ = 598938624.

The previous prime is 1230443633. The next prime is 1230443651. The reversal of 1230443642 is 2463440321.

It is an interprime number because it is at equal distance from previous prime (1230443633) and next prime (1230443651).

It is a super-2 number, since 2×1230443642² = 3027983112276448328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5280758 + ... + 5280990.

It is an arithmetic number, because the mean of its divisors is an integer number (59233356).

Almost surely, 2^1230443642 is an apocalyptic number.

1230443642 is a deficient number, since it is larger than the sum of its proper divisors (665023750).

1230443642 is a wasteful number, since it uses less digits than its factorization.

1230443642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 1230443642 is about 35077.6801114327. The cubic root of 1230443642 is about 1071.5700716448.

Adding to 1230443642 its reverse (2463440321), we get a palindrome (3693883963).

The spelling of 1230443642 in words is "one billion, two hundred thirty million, four hundred forty-three thousand, six hundred forty-two".