30142046 has 8 divisors (see below), whose sum is σ = 49323384. Its totient is φ = 13700920.

The previous prime is 30142043. The next prime is 30142051. The reversal of 30142046 is 64024103.

It is a happy number.

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

It is a super-2 number, since 2×30142046² = 1817085874132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142043) 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 3 ways as a sum of consecutive naturals, for example, 685025 + ... + 685068.

It is an arithmetic number, because the mean of its divisors is an integer number (6165423).

Almost surely, 2^30142046 is an apocalyptic number.

30142046 is a deficient number, since it is larger than the sum of its proper divisors (19181338).

30142046 is a wasteful number, since it uses less digits than its factorization.

30142046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370106.

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

The square root of 30142046 is about 5490.1772284690. The cubic root of 30142046 is about 311.2128896686.

Adding to 30142046 its reverse (64024103), we get a palindrome (94166149).

The spelling of 30142046 in words is "thirty million, one hundred forty-two thousand, forty-six".