1302873540 has 96 divisors (see below), whose sum is σ = 3871131264. Its totient is φ = 326277120.

The previous prime is 1302873521. The next prime is 1302873541. The reversal of 1302873540 is 453782031.

It is a super-2 number, since 2×1302873540² = 3394958922464263200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1302873541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 581302 + ... + 583538.

It is an arithmetic number, because the mean of its divisors is an integer number (40324284).

Almost surely, 2^1302873540 is an apocalyptic number.

1302873540 is a gapful number since it is divisible by the number (10) 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 1302873540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935565632).

1302873540 is an abundant number, since it is smaller than the sum of its proper divisors (2568257724).

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

1302873540 is a wasteful number, since it uses less digits than its factorization.

1302873540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1302873540 is about 36095.3395883735. The cubic root of 1302873540 is about 1092.1964351634.

It can be divided in two parts, 13028 and 73540, that added together give a palindrome (86568).

The spelling of 1302873540 in words is "one billion, three hundred two million, eight hundred seventy-three thousand, five hundred forty".