1230422644 has 12 divisors (see below), whose sum is σ = 2348988768. Its totient is φ = 559283000.

The previous prime is 1230422623. The next prime is 1230422647. The reversal of 1230422644 is 4462240321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230422647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13982032 + ... + 13982119.

It is an arithmetic number, because the mean of its divisors is an integer number (195749064).

Almost surely, 2^1230422644 is an apocalyptic number.

It is an amenable number.

1230422644 is a deficient number, since it is larger than the sum of its proper divisors (1118566124).

1230422644 is a wasteful number, since it uses less digits than its factorization.

1230422644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27964166 (or 27964164 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1230422644 is about 35077.3808030189. The cubic root of 1230422644 is about 1071.5639760233.

Adding to 1230422644 its reverse (4462240321), we get a palindrome (5692662965).

The spelling of 1230422644 in words is "one billion, two hundred thirty million, four hundred twenty-two thousand, six hundred forty-four".