216254356 has 12 divisors (see below), whose sum is σ = 383775840. Its totient is φ = 106604120.

The previous prime is 216254329. The next prime is 216254369. The reversal of 216254356 is 653452612.

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, 380446 + ... + 381013.

It is an arithmetic number, because the mean of its divisors is an integer number (31981320).

Almost surely, 2^216254356 is an apocalyptic number.

It is an amenable number.

216254356 is a deficient number, since it is larger than the sum of its proper divisors (167521484).

216254356 is a wasteful number, since it uses less digits than its factorization.

216254356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761534 (or 761532 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 216254356 is about 14705.5892775502. The cubic root of 216254356 is about 600.2354224299.

The spelling of 216254356 in words is "two hundred sixteen million, two hundred fifty-four thousand, three hundred fifty-six".