1230426650 has 12 divisors (see below), whose sum is σ = 2288593662. Its totient is φ = 492170640.

The previous prime is 1230426649. The next prime is 1230426679. The reversal of 1230426650 is 566240321.

It can be written as a sum of positive squares in 3 ways, for example, as 842218441 + 388208209 = 29021^2 + 19703^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12304217 + ... + 12304316.

Almost surely, 2^1230426650 is an apocalyptic number.

1230426650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230426650 is a deficient number, since it is larger than the sum of its proper divisors (1058167012).

1230426650 is a wasteful number, since it uses less digits than its factorization.

1230426650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24608545 (or 24608540 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1230426650 is about 35077.4379052975. The cubic root of 1230426650 is about 1071.5651389517.

Adding to 1230426650 its reverse (566240321), we get a palindrome (1796666971).

The spelling of 1230426650 in words is "one billion, two hundred thirty million, four hundred twenty-six thousand, six hundred fifty".