30147436 has 12 divisors (see below), whose sum is σ = 57554280. Its totient is φ = 13703360.

The previous prime is 30147431. The next prime is 30147437. The reversal of 30147436 is 63474103.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30147431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342541 + ... + 342628.

It is an arithmetic number, because the mean of its divisors is an integer number (4796190).

Almost surely, 2^30147436 is an apocalyptic number.

It is an amenable number.

30147436 is a deficient number, since it is larger than the sum of its proper divisors (27406844).

30147436 is a wasteful number, since it uses less digits than its factorization.

30147436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685184 (or 685182 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 30147436 is about 5490.6680832117. The cubic root of 30147436 is about 311.2314389237.

The spelling of 30147436 in words is "thirty million, one hundred forty-seven thousand, four hundred thirty-six".