30442146 has 16 divisors (see below), whose sum is σ = 69582144. Its totient is φ = 8697744.

The previous prime is 30442129. The next prime is 30442177. The reversal of 30442146 is 64124403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362365 + ... + 362448.

It is an arithmetic number, because the mean of its divisors is an integer number (4348884).

Almost surely, 2^30442146 is an apocalyptic number.

30442146 is an abundant number, since it is smaller than the sum of its proper divisors (39139998).

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

30442146 is a wasteful number, since it uses less digits than its factorization.

30442146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724825.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 30442146 is about 5517.4401673240. The cubic root of 30442146 is about 312.2423125828.

Adding to 30442146 its reverse (64124403), we get a palindrome (94566549).

The spelling of 30442146 in words is "thirty million, four hundred forty-two thousand, one hundred forty-six".