47390112 has 144 divisors (see below), whose sum is σ = 168098112. Its totient is φ = 12303360.

The previous prime is 47390111. The next prime is 47390141. The reversal of 47390112 is 21109374.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47390111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21108 + ... + 23244.

It is an arithmetic number, because the mean of its divisors is an integer number (1167348).

Almost surely, 2^47390112 is an apocalyptic number.

47390112 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47390112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84049056).

47390112 is an abundant number, since it is smaller than the sum of its proper divisors (120708000).

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

47390112 is a wasteful number, since it uses less digits than its factorization.

47390112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2160 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 47390112 is about 6884.0476465521. The cubic root of 47390112 is about 361.8783307523.

Adding to 47390112 its reverse (21109374), we get a palindrome (68499486).

The spelling of 47390112 in words is "forty-seven million, three hundred ninety thousand, one hundred twelve".