216922630 has 8 divisors (see below), whose sum is σ = 390460752. Its totient is φ = 86769048.

The previous prime is 216922627. The next prime is 216922633. The reversal of 216922630 is 36229612.

It is an interprime number because it is at equal distance from previous prime (216922627) and next prime (216922633).

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

It is a super-2 number, since 2×216922630² = 94110854812233800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 216922592 and 216922601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216922633) 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, 10846122 + ... + 10846141.

It is an arithmetic number, because the mean of its divisors is an integer number (48807594).

Almost surely, 2^216922630 is an apocalyptic number.

216922630 is a deficient number, since it is larger than the sum of its proper divisors (173538122).

216922630 is a wasteful number, since it uses less digits than its factorization.

216922630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21692270.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 216922630 is about 14728.2935196173. The cubic root of 216922630 is about 600.8530735713.

The spelling of 216922630 in words is "two hundred sixteen million, nine hundred twenty-two thousand, six hundred thirty".