1309434790 has 32 divisors (see below), whose sum is σ = 2400516000. Its totient is φ = 514126848.

The previous prime is 1309434787. The next prime is 1309434803. The reversal of 1309434790 is 974349031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546916 + ... + 549304.

It is an arithmetic number, because the mean of its divisors is an integer number (75016125).

Almost surely, 2^1309434790 is an apocalyptic number.

1309434790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1309434790 is a deficient number, since it is larger than the sum of its proper divisors (1091081210).

1309434790 is a wasteful number, since it uses less digits than its factorization.

1309434790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 1309434790 is about 36186.1132204054. The cubic root of 1309434790 is about 1094.0267938809.

The spelling of 1309434790 in words is "one billion, three hundred nine million, four hundred thirty-four thousand, seven hundred ninety".