216124452 has 36 divisors (see below), whose sum is σ = 547472016. Its totient is φ = 71888880.

The previous prime is 216124429. The next prime is 216124477. The reversal of 216124452 is 254421612.

216124452 is a `hidden beast` number, since 2 + 1 + 612 + 4 + 45 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11563 + ... + 23789.

It is an arithmetic number, because the mean of its divisors is an integer number (15207556).

Almost surely, 2^216124452 is an apocalyptic number.

It is an amenable number.

216124452 is an abundant number, since it is smaller than the sum of its proper divisors (331347564).

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

216124452 is a wasteful number, since it uses less digits than its factorization.

216124452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12728 (or 12723 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 216124452 is about 14701.1717900309. The cubic root of 216124452 is about 600.1152112092.

The spelling of 216124452 in words is "two hundred sixteen million, one hundred twenty-four thousand, four hundred fifty-two".