1916239434 has 16 divisors (see below), whose sum is σ = 3999108672. Its totient is φ = 610974848.

The previous prime is 1916239399. The next prime is 1916239453. The reversal of 1916239434 is 4349326191.

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, 6942759 + ... + 6943034.

It is an arithmetic number, because the mean of its divisors is an integer number (249944292).

Almost surely, 2^1916239434 is an apocalyptic number.

1916239434 is an abundant number, since it is smaller than the sum of its proper divisors (2082869238).

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

1916239434 is a wasteful number, since it uses less digits than its factorization.

1916239434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13885821.

The product of its digits is 139968, while the sum is 42.

The square root of 1916239434 is about 43774.8721757129. The cubic root of 1916239434 is about 1242.0810169611.

The spelling of 1916239434 in words is "one billion, nine hundred sixteen million, two hundred thirty-nine thousand, four hundred thirty-four".