1302443712 has 140 divisors (see below), whose sum is σ = 4088236680. Its totient is φ = 408582144.

The previous prime is 1302443699. The next prime is 1302443713. The reversal of 1302443712 is 2173442031.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1302443713) 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, 80739 + ... + 95517.

Almost surely, 2^1302443712 is an apocalyptic number.

1302443712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1302443712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2044118340).

1302443712 is an abundant number, since it is smaller than the sum of its proper divisors (2785792968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1302443712 is a wasteful number, since it uses less digits than its factorization.

1302443712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14820 (or 14801 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 1302443712 is about 36089.3850321670. The cubic root of 1302443712 is about 1092.0763139518.

Adding to 1302443712 its reverse (2173442031), we get a palindrome (3475885743).

It can be divided in two parts, 130244 and 3712, that added together give a square (133956 = 366²).

The spelling of 1302443712 in words is "one billion, three hundred two million, four hundred forty-three thousand, seven hundred twelve".