1244052465 has 16 divisors (see below), whose sum is σ = 2024222400. Its totient is φ = 652248512.

The previous prime is 1244052461. The next prime is 1244052487. The reversal of 1244052465 is 5642504421.

It is a cyclic number.

It is not a de Polignac number, because 1244052465 - 2² = 1244052461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244052461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701970 + ... + 703739.

It is an arithmetic number, because the mean of its divisors is an integer number (126513900).

Almost surely, 2^1244052465 is an apocalyptic number.

1244052465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1244052465 is a deficient number, since it is larger than the sum of its proper divisors (780169935).

1244052465 is a wasteful number, since it uses less digits than its factorization.

1244052465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405776.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 1244052465 is about 35271.1279235581. The cubic root of 1244052465 is about 1075.5061514072.

Adding to 1244052465 its reverse (5642504421), we get a palindrome (6886556886).

The spelling of 1244052465 in words is "one billion, two hundred forty-four million, fifty-two thousand, four hundred sixty-five".