216614004 has 24 divisors (see below), whose sum is σ = 507453408. Its totient is φ = 71916000.

The previous prime is 216613997. The next prime is 216614009. The reversal of 216614004 is 400416612.

216614004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216614009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32947 + ... + 38970.

It is an arithmetic number, because the mean of its divisors is an integer number (21143892).

Almost surely, 2^216614004 is an apocalyptic number.

It is an amenable number.

216614004 is an abundant number, since it is smaller than the sum of its proper divisors (290839404).

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

216614004 is a wasteful number, since it uses less digits than its factorization.

216614004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72175 (or 72173 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 216614004 is about 14717.8124733263. The cubic root of 216614004 is about 600.5679843755.

The spelling of 216614004 in words is "two hundred sixteen million, six hundred fourteen thousand, four".