1909623034 has 16 divisors (see below), whose sum is σ = 3197509920. Its totient is φ = 847823760.

The previous prime is 1909623013. The next prime is 1909623043. The reversal of 1909623034 is 4303269091.

It is a junction number, because it is equal to n+sod(n) for n = 1909622984 and 1909623002.

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, 1008369 + ... + 1010260.

It is an arithmetic number, because the mean of its divisors is an integer number (199844370).

Almost surely, 2^1909623034 is an apocalyptic number.

1909623034 is a deficient number, since it is larger than the sum of its proper divisors (1287886886).

1909623034 is a wasteful number, since it uses less digits than its factorization.

1909623034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018685.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 1909623034 is about 43699.2337919099. The cubic root of 1909623034 is about 1240.6498141962.

The spelling of 1909623034 in words is "one billion, nine hundred nine million, six hundred twenty-three thousand, thirty-four".