30461985 has 24 divisors (see below), whose sum is σ = 53162304. Its totient is φ = 16135200.

The previous prime is 30461957. The next prime is 30462001. The reversal of 30461985 is 58916403.

30461985 is a `hidden beast` number, since 30 + 4 + 619 + 8 + 5 = 666.

It is not a de Polignac number, because 30461985 - 2⁷ = 30461857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4554 + ... + 9036.

It is an arithmetic number, because the mean of its divisors is an integer number (2215096).

Almost surely, 2^30461985 is an apocalyptic number.

It is an amenable number.

30461985 is a deficient number, since it is larger than the sum of its proper divisors (22700319).

30461985 is a wasteful number, since it uses less digits than its factorization.

30461985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645 (or 4642 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 30461985 is about 5519.2377191058. The cubic root of 30461985 is about 312.3101267908.

It can be divided in two parts, 304619 and 85, that added together give a square (304704 = 552²).

The spelling of 30461985 in words is "thirty million, four hundred sixty-one thousand, nine hundred eighty-five".