216898294 has 8 divisors (see below), whose sum is σ = 326890008. Its totient is φ = 107934960.

The previous prime is 216898271. The next prime is 216898307. The reversal of 216898294 is 492898612.

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

It is a super-2 number, since 2×216898294² = 94089739880220872, which contains 22 as substring.

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, 256567 + ... + 257410.

It is an arithmetic number, because the mean of its divisors is an integer number (40861251).

Almost surely, 2^216898294 is an apocalyptic number.

216898294 is a deficient number, since it is larger than the sum of its proper divisors (109991714).

216898294 is a wasteful number, since it uses less digits than its factorization.

216898294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514190.

The product of its digits is 497664, while the sum is 49.

The square root of 216898294 is about 14727.4673314864. The cubic root of 216898294 is about 600.8306033366.

The spelling of 216898294 in words is "two hundred sixteen million, eight hundred ninety-eight thousand, two hundred ninety-four".