216380024 has 32 divisors (see below), whose sum is σ = 464162400. Its totient is φ = 92636160.

The previous prime is 216380023. The next prime is 216380053. The reversal of 216380024 is 420083612.

It is a junction number, because it is equal to n+sod(n) for n = 216379975 and 216380002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216380023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81632 + ... + 84240.

It is an arithmetic number, because the mean of its divisors is an integer number (14505075).

Almost surely, 2^216380024 is an apocalyptic number.

It is an amenable number.

216380024 is an abundant number, since it is smaller than the sum of its proper divisors (247782376).

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

216380024 is a wasteful number, since it uses less digits than its factorization.

216380024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4099 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 216380024 is about 14709.8614541402. The cubic root of 216380024 is about 600.3516679166.

The spelling of 216380024 in words is "two hundred sixteen million, three hundred eighty thousand, twenty-four".