47182830 has 64 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 12161664.

The previous prime is 47182813. The next prime is 47182853. The reversal of 47182830 is 3828174.

It is a junction number, because it is equal to n+sod(n) for n = 47182791 and 47182800.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 153537 + ... + 153843.

It is an arithmetic number, because the mean of its divisors is an integer number (1829520).

Almost surely, 2^47182830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47182830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58544640).

47182830 is an abundant number, since it is smaller than the sum of its proper divisors (69906450).

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

47182830 is a wasteful number, since it uses less digits than its factorization.

47182830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 47182830 is about 6868.9759062032. The cubic root of 47182830 is about 361.3499470022.

The spelling of 47182830 in words is "forty-seven million, one hundred eighty-two thousand, eight hundred thirty".