1303206040 has 16 divisors (see below), whose sum is σ = 2932213680. Its totient is φ = 521282400.

The previous prime is 1303206019. The next prime is 1303206053. The reversal of 1303206040 is 406023031.

It is a junction number, because it is equal to n+sod(n) for n = 1303205999 and 1303206017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16290036 + ... + 16290115.

It is an arithmetic number, because the mean of its divisors is an integer number (183263355).

Almost surely, 2^1303206040 is an apocalyptic number.

1303206040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303206040 is an abundant number, since it is smaller than the sum of its proper divisors (1629007640).

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

1303206040 is a wasteful number, since it uses less digits than its factorization.

1303206040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32580162 (or 32580158 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1303206040 is about 36099.9451523129. The cubic root of 1303206040 is about 1092.2893386353.

Adding to 1303206040 its reverse (406023031), we get a palindrome (1709229071).

It can be divided in two parts, 13032060 and 40, that added together give a square (13032100 = 3610²).

The spelling of 1303206040 in words is "one billion, three hundred three million, two hundred six thousand, forty".