1309429912 has 32 divisors (see below), whose sum is σ = 2839737600. Its totient is φ = 554421024.

The previous prime is 1309429903. The next prime is 1309429921. The reversal of 1309429912 is 2199249031.

It is an interprime number because it is at equal distance from previous prime (1309429903) and next prime (1309429921).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136212 + ... + 145507.

It is an arithmetic number, because the mean of its divisors is an integer number (88741800).

Almost surely, 2^1309429912 is an apocalyptic number.

It is an amenable number.

1309429912 is an abundant number, since it is smaller than the sum of its proper divisors (1530307688).

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

1309429912 is a wasteful number, since it uses less digits than its factorization.

1309429912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281815 (or 281811 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1309429912 is about 36186.0458187960. The cubic root of 1309429912 is about 1094.0254353637.

The spelling of 1309429912 in words is "one billion, three hundred nine million, four hundred twenty-nine thousand, nine hundred twelve".