1302040390 has 16 divisors (see below), whose sum is σ = 2678483232. Its totient is φ = 446413824.

The previous prime is 1302040357. The next prime is 1302040391. The reversal of 1302040390 is 930402031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302040391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9300219 + ... + 9300358.

It is an arithmetic number, because the mean of its divisors is an integer number (167405202).

Almost surely, 2^1302040390 is an apocalyptic number.

1302040390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1302040390 is an abundant number, since it is smaller than the sum of its proper divisors (1376442842).

1302040390 is a wasteful number, since it uses less digits than its factorization.

1302040390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18600591.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1302040390 is about 36083.7967791639. The cubic root of 1302040390 is about 1091.9635761621.

The spelling of 1302040390 in words is "one billion, three hundred two million, forty thousand, three hundred ninety".