216102774 has 16 divisors (see below), whose sum is σ = 432390960. Its totient is φ = 72003360.

The previous prime is 216102773. The next prime is 216102787. The reversal of 216102774 is 477201612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216102773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10872 + ... + 23460.

It is an arithmetic number, because the mean of its divisors is an integer number (27024435).

Almost surely, 2^216102774 is an apocalyptic number.

216102774 is an abundant number, since it is smaller than the sum of its proper divisors (216288186).

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

216102774 is a wasteful number, since it uses less digits than its factorization.

216102774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15455.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 216102774 is about 14700.4344833750. The cubic root of 216102774 is about 600.0951460224.

The spelling of 216102774 in words is "two hundred sixteen million, one hundred two thousand, seven hundred seventy-four".