215046630 has 64 divisors (see below), whose sum is σ = 575769600. Its totient is φ = 57114720.

The previous prime is 215046581. The next prime is 215046631. The reversal of 215046630 is 36640512.

215046630 is a `hidden beast` number, since 21 + 5 + 0 + 4 + 6 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 215046594 and 215046603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215046631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71701 + ... + 74639.

It is an arithmetic number, because the mean of its divisors is an integer number (8996400).

Almost surely, 2^215046630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215046630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287884800).

215046630 is an abundant number, since it is smaller than the sum of its proper divisors (360722970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215046630 is a wasteful number, since it uses less digits than its factorization.

215046630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226 (or 3220 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 215046630 is about 14664.4682822119. The cubic root of 215046630 is about 599.1159480600.

The spelling of 215046630 in words is "two hundred fifteen million, forty-six thousand, six hundred thirty".