1216932434 has 32 divisors (see below), whose sum is σ = 1874036736. Its totient is φ = 592562880.

The previous prime is 1216932427. The next prime is 1216932443. The reversal of 1216932434 is 4342396121.

It is a junction number, because it is equal to n+sod(n) for n = 1216932394 and 1216932403.

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, 6177224 + ... + 6177420.

It is an arithmetic number, because the mean of its divisors is an integer number (58563648).

Almost surely, 2^1216932434 is an apocalyptic number.

1216932434 is a deficient number, since it is larger than the sum of its proper divisors (657104302).

1216932434 is a wasteful number, since it uses less digits than its factorization.

1216932434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650.

The product of its digits is 31104, while the sum is 35.

The square root of 1216932434 is about 34884.5586757236. The cubic root of 1216932434 is about 1067.6334086916.

The spelling of 1216932434 in words is "one billion, two hundred sixteen million, nine hundred thirty-two thousand, four hundred thirty-four".