216454246 has 8 divisors (see below), whose sum is σ = 327051720. Its totient is φ = 107437008.

The previous prime is 216454243. The next prime is 216454253. The reversal of 216454246 is 642454612.

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

It is a super-2 number, since 2×216454246² = 93704881222857032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216454241) 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, 394716 + ... + 395263.

It is an arithmetic number, because the mean of its divisors is an integer number (40881465).

Almost surely, 2^216454246 is an apocalyptic number.

216454246 is a deficient number, since it is larger than the sum of its proper divisors (110597474).

216454246 is a wasteful number, since it uses less digits than its factorization.

216454246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790118.

The product of its digits is 46080, while the sum is 34.

The square root of 216454246 is about 14712.3841031969. The cubic root of 216454246 is about 600.4203036541.

The spelling of 216454246 in words is "two hundred sixteen million, four hundred fifty-four thousand, two hundred forty-six".