216572934 has 16 divisors (see below), whose sum is σ = 433678320. Its totient is φ = 72102240.

The previous prime is 216572929. The next prime is 216572959. The reversal of 216572934 is 439275612.

It is a junction number, because it is equal to n+sod(n) for n = 216572892 and 216572901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16797 + ... + 26744.

It is an arithmetic number, because the mean of its divisors is an integer number (27104895).

Almost surely, 2^216572934 is an apocalyptic number.

216572934 is an abundant number, since it is smaller than the sum of its proper divisors (217105386).

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

216572934 is a wasteful number, since it uses less digits than its factorization.

216572934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44375.

The product of its digits is 90720, while the sum is 39.

The square root of 216572934 is about 14716.4171590778. The cubic root of 216572934 is about 600.5300260938.

The spelling of 216572934 in words is "two hundred sixteen million, five hundred seventy-two thousand, nine hundred thirty-four".