216674804 has 12 divisors (see below), whose sum is σ = 384375684. Its totient is φ = 106853184.

The previous prime is 216674761. The next prime is 216674819. The reversal of 216674804 is 408476612.

It can be written as a sum of positive squares in 2 ways, for example, as 61622500 + 155052304 = 7850^2 + 12452^2 .

It is a congruent number.

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, 370727 + ... + 371310.

It is an arithmetic number, because the mean of its divisors is an integer number (32031307).

Almost surely, 2^216674804 is an apocalyptic number.

It is an amenable number.

216674804 is a deficient number, since it is larger than the sum of its proper divisors (167700880).

216674804 is a wasteful number, since it uses less digits than its factorization.

216674804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742114 (or 742112 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 216674804 is about 14719.8778527541. The cubic root of 216674804 is about 600.6241689818.

The spelling of 216674804 in words is "two hundred sixteen million, six hundred seventy-four thousand, eight hundred four".