47451830 has 16 divisors (see below), whose sum is σ = 88359120. Its totient is φ = 18326112.

The previous prime is 47451827. The next prime is 47451857. The reversal of 47451830 is 3815474.

47451830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 81524 + ... + 82103.

It is an arithmetic number, because the mean of its divisors is an integer number (5522445).

Almost surely, 2^47451830 is an apocalyptic number.

47451830 is a deficient number, since it is larger than the sum of its proper divisors (40907290).

47451830 is a wasteful number, since it uses less digits than its factorization.

47451830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163663.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 47451830 is about 6888.5288705209. The cubic root of 47451830 is about 362.0353587146.

The spelling of 47451830 in words is "forty-seven million, four hundred fifty-one thousand, eight hundred thirty".