180284816 has 10 divisors (see below), whose sum is σ = 349301862. Its totient is φ = 90142400.

The previous prime is 180284803. The next prime is 180284821. The reversal of 180284816 is 618482081.

It can be written as a sum of positive squares in only one way, i.e., 174134416 + 6150400 = 13196^2 + 2480^2 .

It is a super-2 number, since 2×180284816² = 65005229760307712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 180284816.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5633885 + ... + 5633916.

Almost surely, 2^180284816 is an apocalyptic number.

180284816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

180284816 is a deficient number, since it is larger than the sum of its proper divisors (169017046).

180284816 is a wasteful number, since it uses less digits than its factorization.

180284816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11267809 (or 11267803 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 180284816 is about 13427.0181350887. The cubic root of 180284816 is about 564.9192627474.

The spelling of 180284816 in words is "one hundred eighty million, two hundred eighty-four thousand, eight hundred sixteen".