1306861692 has 24 divisors (see below), whose sum is σ = 3051100416. Its totient is φ = 435369648.

The previous prime is 1306861669. The next prime is 1306861739. The reversal of 1306861692 is 2961686031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9028 + ... + 51915.

It is an arithmetic number, because the mean of its divisors is an integer number (127129184).

Almost surely, 2^1306861692 is an apocalyptic number.

1306861692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1306861692 is an abundant number, since it is smaller than the sum of its proper divisors (1744238724).

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

1306861692 is a wasteful number, since it uses less digits than its factorization.

1306861692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62737 (or 62735 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1306861692 is about 36150.5420706246. The cubic root of 1306861692 is about 1093.3097201011.

The spelling of 1306861692 in words is "one billion, three hundred six million, eight hundred sixty-one thousand, six hundred ninety-two".