30768818 has 8 divisors (see below), whose sum is σ = 46205100. Its totient is φ = 15367120.

The previous prime is 30768791. The next prime is 30768823. The reversal of 30768818 is 81886703.

It can be written as a sum of positive squares in 2 ways, for example, as 30283009 + 485809 = 5503^2 + 697^2 .

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

It is a super-2 number, since 2×30768818² = 1893440322234248, which contains 22 as substring.

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, 6293 + ... + 10056.

Almost surely, 2^30768818 is an apocalyptic number.

30768818 is a deficient number, since it is larger than the sum of its proper divisors (15436282).

30768818 is a wasteful number, since it uses less digits than its factorization.

30768818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17292.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 30768818 is about 5546.9647556118. The cubic root of 30768818 is about 313.3552228056.

The spelling of 30768818 in words is "thirty million, seven hundred sixty-eight thousand, eight hundred eighteen".