30136418 has 24 divisors (see below), whose sum is σ = 49339728. Its totient is φ = 13798512.

The previous prime is 30136411. The next prime is 30136439. The reversal of 30136418 is 81463103.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (30136411) 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 11 ways as a sum of consecutive naturals, for example, 54821 + ... + 55367.

It is an arithmetic number, because the mean of its divisors is an integer number (2055822).

Almost surely, 2^30136418 is an apocalyptic number.

30136418 is a deficient number, since it is larger than the sum of its proper divisors (19203310).

30136418 is a wasteful number, since it uses less digits than its factorization.

30136418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30136418 is about 5489.6646527816. The cubic root of 30136418 is about 311.1935189954.

The spelling of 30136418 in words is "thirty million, one hundred thirty-six thousand, four hundred eighteen".