1244246426 has 12 divisors (see below), whose sum is σ = 1969770762. Its totient is φ = 589379544.

The previous prime is 1244246413. The next prime is 1244246447. The reversal of 1244246426 is 6246424421.

It can be written as a sum of positive squares in only one way, i.e., 948578401 + 295668025 = 30799^2 + 17195^2 .

It is a super-2 number, since 2×1244246426² = 3096298337227546952, which contains 22 as substring.

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, 860945 + ... + 862388.

Almost surely, 2^1244246426 is an apocalyptic number.

1244246426 is a deficient number, since it is larger than the sum of its proper divisors (725524336).

1244246426 is a wasteful number, since it uses less digits than its factorization.

1244246426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723373 (or 1723354 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

The square root of 1244246426 is about 35273.8773882316. The cubic root of 1244246426 is about 1075.5620427822.

The spelling of 1244246426 in words is "one billion, two hundred forty-four million, two hundred forty-six thousand, four hundred twenty-six".