216363042 has 64 divisors (see below), whose sum is σ = 553943040. Its totient is φ = 61317648.

The previous prime is 216363041. The next prime is 216363053. The reversal of 216363042 is 240363612.

216363042 is a `hidden beast` number, since 21 + 6 + 3 + 630 + 4 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 216362997 and 216363015.

It is not an unprimeable number, because it can be changed into a prime (216363041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45753 + ... + 50259.

It is an arithmetic number, because the mean of its divisors is an integer number (8655360).

Almost surely, 2^216363042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216363042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276971520).

216363042 is an abundant number, since it is smaller than the sum of its proper divisors (337579998).

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

216363042 is a wasteful number, since it uses less digits than its factorization.

216363042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652 (or 4646 counting only the distinct ones).

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

The square root of 216363042 is about 14709.2842110009. The cubic root of 216363042 is about 600.3359618476.

The spelling of 216363042 in words is "two hundred sixteen million, three hundred sixty-three thousand, forty-two".