1302303040 has 56 divisors (see below), whose sum is σ = 3105512712. Its totient is φ = 520181760.

The previous prime is 1302303019. The next prime is 1302303043. The reversal of 1302303040 is 403032031.

It can be written as a sum of positive squares in 4 ways, for example, as 194212096 + 1108090944 = 13936^2 + 33288^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302303043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260242 + ... + 265198.

Almost surely, 2^1302303040 is an apocalyptic number.

1302303040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302303040 is an abundant number, since it is smaller than the sum of its proper divisors (1803209672).

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

1302303040 is an equidigital number, since it uses as much as digits as its factorization.

1302303040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795 (or 5785 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1302303040 is about 36087.4360408162. The cubic root of 1302303040 is about 1092.0369955309.

Adding to 1302303040 its reverse (403032031), we get a palindrome (1705335071).

The spelling of 1302303040 in words is "one billion, three hundred two million, three hundred three thousand, forty".