30146538 has 16 divisors (see below), whose sum is σ = 60397920. Its totient is φ = 10031376.

The previous prime is 30146531. The next prime is 30146563. The reversal of 30146538 is 83564103.

It is not an unprimeable number, because it can be changed into a prime (30146531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345 + ... + 7772.

It is an arithmetic number, because the mean of its divisors is an integer number (3774870).

Almost surely, 2^30146538 is an apocalyptic number.

30146538 is an abundant number, since it is smaller than the sum of its proper divisors (30251382).

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

30146538 is a wasteful number, since it uses less digits than its factorization.

30146538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8741.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 30146538 is about 5490.5863074903. The cubic root of 30146538 is about 311.2283486818.

The spelling of 30146538 in words is "thirty million, one hundred forty-six thousand, five hundred thirty-eight".