30042970 has 16 divisors (see below), whose sum is σ = 54144288. Its totient is φ = 12002320.

The previous prime is 30042953. The next prime is 30042973. The reversal of 30042970 is 7924003.

It is not an unprimeable number, because it can be changed into a prime (30042973) 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, 10605 + ... + 13135.

It is an arithmetic number, because the mean of its divisors is an integer number (3384018).

Almost surely, 2^30042970 is an apocalyptic number.

30042970 is a deficient number, since it is larger than the sum of its proper divisors (24101318).

30042970 is a wasteful number, since it uses less digits than its factorization.

30042970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30042970 is about 5481.1467778194. The cubic root of 30042970 is about 310.8715329111.

Adding to 30042970 its reverse (7924003), we get a palindrome (37966973).

The spelling of 30042970 in words is "thirty million, forty-two thousand, nine hundred seventy".