1309474828 has 12 divisors (see below), whose sum is σ = 2306178112. Its totient is φ = 650566800.

The previous prime is 1309474819. The next prime is 1309474841. The reversal of 1309474828 is 8284749031.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041948 + ... + 1043203.

Almost surely, 2^1309474828 is an apocalyptic number.

It is an amenable number.

1309474828 is a deficient number, since it is larger than the sum of its proper divisors (996703284).

1309474828 is a wasteful number, since it uses less digits than its factorization.

1309474828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085312 (or 2085310 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 1309474828 is about 36186.6664394498. Note that the first 3 decimals coincide. The cubic root of 1309474828 is about 1094.0379442894.

The spelling of 1309474828 in words is "one billion, three hundred nine million, four hundred seventy-four thousand, eight hundred twenty-eight".