30057146 has 8 divisors (see below), whose sum is σ = 51526560. Its totient is φ = 12881628.

The previous prime is 30057127. The next prime is 30057149. The reversal of 30057146 is 64175003.

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

It is not an unprimeable number, because it can be changed into a prime (30057149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073456 + ... + 1073483.

It is an arithmetic number, because the mean of its divisors is an integer number (6440820).

Almost surely, 2^30057146 is an apocalyptic number.

30057146 is a deficient number, since it is larger than the sum of its proper divisors (21469414).

30057146 is a wasteful number, since it uses less digits than its factorization.

30057146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146948.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30057146 is about 5482.4397853510. The cubic root of 30057146 is about 310.9204209082.

It can be divided in two parts, 30057 and 146, that added together give a palindrome (30203).

The spelling of 30057146 in words is "thirty million, fifty-seven thousand, one hundred forty-six".