1244455299 has 16 divisors (see below), whose sum is σ = 1893467040. Its totient is φ = 807213600.

The previous prime is 1244455297. The next prime is 1244455361. The reversal of 1244455299 is 9925544421.

1244455299 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 4 + 552 + 99 = 666.

It is not a de Polignac number, because 1244455299 - 2¹ = 1244455297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244455297) 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 15 ways as a sum of consecutive naturals, for example, 621852 + ... + 623849.

It is an arithmetic number, because the mean of its divisors is an integer number (118341690).

Almost surely, 2^1244455299 is an apocalyptic number.

1244455299 is a deficient number, since it is larger than the sum of its proper divisors (649011741).

1244455299 is a wasteful number, since it uses less digits than its factorization.

1244455299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245747 (or 1245741 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 1244455299 is about 35276.8379960563. The cubic root of 1244455299 is about 1075.6222246711.

The spelling of 1244455299 in words is "one billion, two hundred forty-four million, four hundred fifty-five thousand, two hundred ninety-nine".