30306942 has 12 divisors (see below), whose sum is σ = 65665080. Its totient is φ = 10102308.

The previous prime is 30306931. The next prime is 30306949. The reversal of 30306942 is 24960303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30306949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 841842 + ... + 841877.

It is an arithmetic number, because the mean of its divisors is an integer number (5472090).

Almost surely, 2^30306942 is an apocalyptic number.

30306942 is an abundant number, since it is smaller than the sum of its proper divisors (35358138).

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

30306942 is a wasteful number, since it uses less digits than its factorization.

30306942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683727 (or 1683724 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 30306942 is about 5505.1741116880. The cubic root of 30306942 is about 311.7793681780.

The spelling of 30306942 in words is "thirty million, three hundred six thousand, nine hundred forty-two".