47888190 has 72 divisors (see below), whose sum is σ = 144850680. Its totient is φ = 10944864.

The previous prime is 47888179. The next prime is 47888237. The reversal of 47888190 is 9188874.

It is a super-2 number, since 2×47888190² = 4586557482952200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1020 + ... + 9839.

It is an arithmetic number, because the mean of its divisors is an integer number (2011815).

Almost surely, 2^47888190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47888190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72425340).

47888190 is an abundant number, since it is smaller than the sum of its proper divisors (96962490).

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

47888190 is a wasteful number, since it uses less digits than its factorization.

47888190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10886 (or 10876 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 47888190 is about 6920.1293340515. The cubic root of 47888190 is about 363.1417154932.

The spelling of 47888190 in words is "forty-seven million, eight hundred eighty-eight thousand, one hundred ninety".