30046142 has 24 divisors (see below), whose sum is σ = 53857776. Its totient is φ = 12314016.

The previous prime is 30046141. The next prime is 30046147. The reversal of 30046142 is 24164003.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30046141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5378 + ... + 9434.

It is an arithmetic number, because the mean of its divisors is an integer number (2244074).

Almost surely, 2^30046142 is an apocalyptic number.

30046142 is a deficient number, since it is larger than the sum of its proper divisors (23811634).

30046142 is a wasteful number, since it uses less digits than its factorization.

30046142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30046142 is about 5481.4361256882. The cubic root of 30046142 is about 310.8824733496.

The spelling of 30046142 in words is "thirty million, forty-six thousand, one hundred forty-two".