216360342 has 48 divisors (see below), whose sum is σ = 528499440. Its totient is φ = 65561760.

The previous prime is 216360323. The next prime is 216360371. The reversal of 216360342 is 243063612.

216360342 is a `hidden beast` number, since 2 + 16 + 3 + 603 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10023 + ... + 23090.

It is an arithmetic number, because the mean of its divisors is an integer number (11010405).

Almost surely, 2^216360342 is an apocalyptic number.

216360342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

216360342 is an abundant number, since it is smaller than the sum of its proper divisors (312139098).

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

216360342 is a wasteful number, since it uses less digits than its factorization.

216360342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33146 (or 33129 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 216360342 is about 14709.1924319454. The cubic root of 216360342 is about 600.3334646346. Note that the first 3 decimals are identical.

The spelling of 216360342 in words is "two hundred sixteen million, three hundred sixty thousand, three hundred forty-two".