30420626 has 8 divisors (see below), whose sum is σ = 45686640. Its totient is φ = 15191748.

The previous prime is 30420619. The next prime is 30420659. The reversal of 30420626 is 62602403.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7136 + ... + 10571.

It is an arithmetic number, because the mean of its divisors is an integer number (5710830).

Almost surely, 2^30420626 is an apocalyptic number.

30420626 is a deficient number, since it is larger than the sum of its proper divisors (15266014).

30420626 is a wasteful number, since it uses less digits than its factorization.

30420626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18568.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 30420626 is about 5515.4896428150. The cubic root of 30420626 is about 312.1687190134.

The spelling of 30420626 in words is "thirty million, four hundred twenty thousand, six hundred twenty-six".