30840566 has 8 divisors (see below), whose sum is σ = 46324704. Its totient is φ = 15399000.

The previous prime is 30840521. The next prime is 30840583. The reversal of 30840566 is 66504803.

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

It is a super-2 number, since 2×30840566² = 1902281022400712, 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, 8765 + ... + 11768.

It is an arithmetic number, because the mean of its divisors is an integer number (5790588).

Almost surely, 2^30840566 is an apocalyptic number.

30840566 is a deficient number, since it is larger than the sum of its proper divisors (15484138).

30840566 is a wasteful number, since it uses less digits than its factorization.

30840566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21286.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 30840566 is about 5553.4283105123. The cubic root of 30840566 is about 313.5985986137.

The spelling of 30840566 in words is "thirty million, eight hundred forty thousand, five hundred sixty-six".