1244011005 has 48 divisors (see below), whose sum is σ = 2270885760. Its totient is φ = 628746624.

The previous prime is 1244010953. The next prime is 1244011007. The reversal of 1244011005 is 5001104421.

It is not a de Polignac number, because 1244011005 - 2¹⁰ = 1244009981 is a prime.

It is a super-2 number, since 2×1244011005² = 3095126761122220050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244011007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107302 + ... + 118328.

It is an arithmetic number, because the mean of its divisors is an integer number (47310120).

Almost surely, 2^1244011005 is an apocalyptic number.

1244011005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1244011005 is a deficient number, since it is larger than the sum of its proper divisors (1026874755).

1244011005 is a wasteful number, since it uses less digits than its factorization.

1244011005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11170 (or 11167 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1244011005 is about 35270.5401858265. The cubic root of 1244011005 is about 1075.4942036313.

Adding to 1244011005 its reverse (5001104421), we get a palindrome (6245115426).

The spelling of 1244011005 in words is "one billion, two hundred forty-four million, eleven thousand, five".