1244898213 has 16 divisors (see below), whose sum is σ = 1788997056. Its totient is φ = 765469440.

The previous prime is 1244898173. The next prime is 1244898227. The reversal of 1244898213 is 3128984421.

It is not a de Polignac number, because 1244898213 - 2¹⁰ = 1244897189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244898233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38278 + ... + 62888.

It is an arithmetic number, because the mean of its divisors is an integer number (111812316).

Almost surely, 2^1244898213 is an apocalyptic number.

1244898213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1244898213 is a deficient number, since it is larger than the sum of its proper divisors (544098843).

1244898213 is a wasteful number, since it uses less digits than its factorization.

1244898213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25924.

The product of its digits is 110592, while the sum is 42.

The square root of 1244898213 is about 35283.1151260769. The cubic root of 1244898213 is about 1075.7498177458.

The spelling of 1244898213 in words is "one billion, two hundred forty-four million, eight hundred ninety-eight thousand, two hundred thirteen".