1244464067 has 24 divisors (see below), whose sum is σ = 1566582528. Its totient is φ = 967673520.

The previous prime is 1244464063. The next prime is 1244464099. The reversal of 1244464067 is 7604644421.

It is a happy number.

It is not a de Polignac number, because 1244464067 - 2² = 1244464063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1244464067.

It is not an unprimeable number, because it can be changed into a prime (1244464063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495938 + ... + 498440.

It is an arithmetic number, because the mean of its divisors is an integer number (65274272).

Almost surely, 2^1244464067 is an apocalyptic number.

1244464067 is a deficient number, since it is larger than the sum of its proper divisors (322118461).

1244464067 is a wasteful number, since it uses less digits than its factorization.

1244464067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119 (or 3108 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 1244464067 is about 35276.9622700141. The cubic root of 1244464067 is about 1075.6247508188.

The spelling of 1244464067 in words is "one billion, two hundred forty-four million, four hundred sixty-four thousand, sixty-seven".