1306367990 has 16 divisors (see below), whose sum is σ = 2475223920. Its totient is φ = 495044640.

The previous prime is 1306367983. The next prime is 1306367999. The reversal of 1306367990 is 997636031.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306367999) 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, 3437621 + ... + 3438000.

It is an arithmetic number, because the mean of its divisors is an integer number (154701495).

Almost surely, 2^1306367990 is an apocalyptic number.

1306367990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1306367990 is a deficient number, since it is larger than the sum of its proper divisors (1168855930).

1306367990 is a wasteful number, since it uses less digits than its factorization.

1306367990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875647.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 1306367990 is about 36143.7130079354. The cubic root of 1306367990 is about 1093.1720270859.

The spelling of 1306367990 in words is "one billion, three hundred six million, three hundred sixty-seven thousand, nine hundred ninety".