216466004 has 12 divisors (see below), whose sum is σ = 383611200. Its totient is φ = 106862808.

The previous prime is 216465989. The next prime is 216466013. The reversal of 216466004 is 400664612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342194 + ... + 342825.

It is an arithmetic number, because the mean of its divisors is an integer number (31967600).

Almost surely, 2^216466004 is an apocalyptic number.

It is an amenable number.

216466004 is a deficient number, since it is larger than the sum of its proper divisors (167145196).

216466004 is a wasteful number, since it uses less digits than its factorization.

216466004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685102 (or 685100 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 216466004 is about 14712.7836931017. The cubic root of 216466004 is about 600.4311752575.

The spelling of 216466004 in words is "two hundred sixteen million, four hundred sixty-six thousand, four".