30606620 has 24 divisors (see below), whose sum is σ = 70117488. Its totient is φ = 11129600.

The previous prime is 30606617. The next prime is 30606683. The reversal of 30606620 is 2660603.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 69341 + ... + 69780.

It is an arithmetic number, because the mean of its divisors is an integer number (2921562).

Almost surely, 2^30606620 is an apocalyptic number.

It is an amenable number.

30606620 is an abundant number, since it is smaller than the sum of its proper divisors (39510868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30606620 is a wasteful number, since it uses less digits than its factorization.

30606620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139141 (or 139139 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 30606620 is about 5532.3250085294. The cubic root of 30606620 is about 312.8036344840.

The spelling of 30606620 in words is "thirty million, six hundred six thousand, six hundred twenty".