30566990 has 8 divisors (see below), whose sum is σ = 55020600. Its totient is φ = 12226792.

The previous prime is 30566989. The next prime is 30566993. The reversal of 30566990 is 9966503.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30566993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528340 + ... + 1528359.

It is an arithmetic number, because the mean of its divisors is an integer number (6877575).

Almost surely, 2^30566990 is an apocalyptic number.

30566990 is a deficient number, since it is larger than the sum of its proper divisors (24453610).

30566990 is a wasteful number, since it uses less digits than its factorization.

30566990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056706.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 30566990 is about 5528.7421715974. The cubic root of 30566990 is about 312.6685682548.

The spelling of 30566990 in words is "thirty million, five hundred sixty-six thousand, nine hundred ninety".