1244232406 has 4 divisors (see below), whose sum is σ = 1866348612. Its totient is φ = 622116202.

The previous prime is 1244232389. The next prime is 1244232419. The reversal of 1244232406 is 6042324421.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1244232406² = 3096228560281097672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311058100 + ... + 311058103.

It is an arithmetic number, because the mean of its divisors is an integer number (466587153).

Almost surely, 2^1244232406 is an apocalyptic number.

1244232406 is a deficient number, since it is larger than the sum of its proper divisors (622116206).

1244232406 is an equidigital number, since it uses as much as digits as its factorization.

1244232406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622116205.

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

The square root of 1244232406 is about 35273.6786570383. The cubic root of 1244232406 is about 1075.5580030046.

Adding to 1244232406 its reverse (6042324421), we get a palindrome (7286556827).

The spelling of 1244232406 in words is "one billion, two hundred forty-four million, two hundred thirty-two thousand, four hundred six".