216254746 has 8 divisors (see below), whose sum is σ = 332294004. Its totient is φ = 105490080.

The previous prime is 216254741. The next prime is 216254777. The reversal of 216254746 is 647452612.

216254746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 202749121 + 13505625 = 14239^2 + 3675^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×216254746² = 93532230335049032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216254741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318545 + ... + 1318708.

Almost surely, 2^216254746 is an apocalyptic number.

216254746 is a deficient number, since it is larger than the sum of its proper divisors (116039258).

216254746 is a wasteful number, since it uses less digits than its factorization.

216254746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637296.

The product of its digits is 80640, while the sum is 37.

The square root of 216254746 is about 14705.6025378085. The cubic root of 216254746 is about 600.2357832575.

The spelling of 216254746 in words is "two hundred sixteen million, two hundred fifty-four thousand, seven hundred forty-six".