30768215 has 8 divisors (see below), whose sum is σ = 39093840. Its totient is φ = 23166592.

The previous prime is 30768187. The next prime is 30768233. The reversal of 30768215 is 51286703.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30768215 - 2⁸ = 30767959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180905 + ... + 181074.

It is an arithmetic number, because the mean of its divisors is an integer number (4886730).

Almost surely, 2^30768215 is an apocalyptic number.

30768215 is a deficient number, since it is larger than the sum of its proper divisors (8325625).

30768215 is a wasteful number, since it uses less digits than its factorization.

30768215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362001.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 30768215 is about 5546.9104012955. The cubic root of 30768215 is about 313.3531757717.

The spelling of 30768215 in words is "thirty million, seven hundred sixty-eight thousand, two hundred fifteen".