47136418 has 16 divisors (see below), whose sum is σ = 81293184. Its totient is φ = 20079360.

The previous prime is 47136391. The next prime is 47136449. The reversal of 47136418 is 81463174.

It is a happy number.

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, 7743 + ... + 12418.

It is an arithmetic number, because the mean of its divisors is an integer number (5080824).

Almost surely, 2^47136418 is an apocalyptic number.

47136418 is a deficient number, since it is larger than the sum of its proper divisors (34156766).

47136418 is a wasteful number, since it uses less digits than its factorization.

47136418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20337.

The product of its digits is 16128, while the sum is 34.

The square root of 47136418 is about 6865.5966965734. The cubic root of 47136418 is about 361.2314259516.

The spelling of 47136418 in words is "forty-seven million, one hundred thirty-six thousand, four hundred eighteen".