47442000 has 80 divisors (see below), whose sum is σ = 152972352. Its totient is φ = 12649600.

The previous prime is 47441969. The next prime is 47442001. The reversal of 47442000 is 24474.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47442001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2047 + ... + 9953.

Almost surely, 2^47442000 is an apocalyptic number.

47442000 is a gapful number since it is divisible by the number (40) 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 47442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76486176).

47442000 is an abundant number, since it is smaller than the sum of its proper divisors (105530352).

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

47442000 is a wasteful number, since it uses less digits than its factorization.

47442000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7933 (or 7917 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 47442000 is about 6887.8153285349. The cubic root of 47442000 is about 362.0103575478.

Adding to 47442000 its reverse (24474), we get a palindrome (47466474).

The spelling of 47442000 in words is "forty-seven million, four hundred forty-two thousand".