1344630213 has 20 divisors (see below), whose sum is σ = 2027086380. Its totient is φ = 888190272.

The previous prime is 1344630197. The next prime is 1344630227. The reversal of 1344630213 is 3120364431.

1344630213 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 630 + 21 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 495374049 + 849256164 = 22257^2 + 29142^2 .

It is not a de Polignac number, because 1344630213 - 2⁴ = 1344630197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344630233) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67320 + ... + 84977.

It is an arithmetic number, because the mean of its divisors is an integer number (101354319).

Almost surely, 2^1344630213 is an apocalyptic number.

It is an amenable number.

1344630213 is a deficient number, since it is larger than the sum of its proper divisors (682456167).

1344630213 is a wasteful number, since it uses less digits than its factorization.

1344630213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152418 (or 152409 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1344630213 is about 36669.1997867420. The cubic root of 1344630213 is about 1103.7421346583.

Adding to 1344630213 its reverse (3120364431), we get a palindrome (4464994644).

The spelling of 1344630213 in words is "one billion, three hundred forty-four million, six hundred thirty thousand, two hundred thirteen".