1244330402 has 48 divisors (see below), whose sum is σ = 2355150168. Its totient is φ = 489646080.

The previous prime is 1244330401. The next prime is 1244330407. The reversal of 1244330402 is 2040334421.

It can be written as a sum of positive squares in 4 ways, for example, as 763361641 + 480968761 = 27629^2 + 21931^2 .

It is not an unprimeable number, because it can be changed into a prime (1244330401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59198 + ... + 77414.

Almost surely, 2^1244330402 is an apocalyptic number.

1244330402 is a deficient number, since it is larger than the sum of its proper divisors (1110819766).

1244330402 is a wasteful number, since it uses less digits than its factorization.

1244330402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18291 (or 18284 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1244330402 is about 35275.0677107784. The cubic root of 1244330402 is about 1075.5862393198.

Adding to 1244330402 its reverse (2040334421), we get a palindrome (3284664823).

The spelling of 1244330402 in words is "one billion, two hundred forty-four million, three hundred thirty thousand, four hundred two".