30942885 has 8 divisors (see below), whose sum is σ = 49508640. Its totient is φ = 16502864.

The previous prime is 30942883. The next prime is 30942893. The reversal of 30942885 is 58824903.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30942885 - 2¹ = 30942883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30942881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031415 + ... + 1031444.

It is an arithmetic number, because the mean of its divisors is an integer number (6188580).

Almost surely, 2^30942885 is an apocalyptic number.

It is an amenable number.

30942885 is a deficient number, since it is larger than the sum of its proper divisors (18565755).

30942885 is a wasteful number, since it uses less digits than its factorization.

30942885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062867.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 30942885 is about 5562.6329197602. The cubic root of 30942885 is about 313.9450219512.

The spelling of 30942885 in words is "thirty million, nine hundred forty-two thousand, eight hundred eighty-five".