216184242 has 16 divisors (see below), whose sum is σ = 455124960. Its totient is φ = 68268672.

The previous prime is 216184237. The next prime is 216184321. The reversal of 216184242 is 242481612.

It is a super-2 number, since 2×216184242² = 93471252978229128, which contains 22 as substring.

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, 948063 + ... + 948290.

It is an arithmetic number, because the mean of its divisors is an integer number (28445310).

Almost surely, 2^216184242 is an apocalyptic number.

216184242 is an abundant number, since it is smaller than the sum of its proper divisors (238940718).

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

216184242 is a wasteful number, since it uses less digits than its factorization.

216184242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896377.

The product of its digits is 6144, while the sum is 30.

The square root of 216184242 is about 14703.2051607804. The cubic root of 216184242 is about 600.1705459633.

The spelling of 216184242 in words is "two hundred sixteen million, one hundred eighty-four thousand, two hundred forty-two".