216479028 has 48 divisors (see below), whose sum is σ = 519051456. Its totient is φ = 70183680.

The previous prime is 216478981. The next prime is 216479047. The reversal of 216479028 is 820974612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144250 + ... + 145742.

It is an arithmetic number, because the mean of its divisors is an integer number (10813572).

Almost surely, 2^216479028 is an apocalyptic number.

It is an amenable number.

216479028 is an abundant number, since it is smaller than the sum of its proper divisors (302572428).

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

216479028 is a wasteful number, since it uses less digits than its factorization.

216479028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824 (or 1822 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 216479028 is about 14713.2262947322. The cubic root of 216479028 is about 600.4432169617.

The spelling of 216479028 in words is "two hundred sixteen million, four hundred seventy-nine thousand, twenty-eight".