47442340 has 48 divisors (see below), whose sum is σ = 109952640. Its totient is φ = 17050880.

The previous prime is 47442301. The next prime is 47442361. The reversal of 47442340 is 4324474.

It is a junction number, because it is equal to n+sod(n) for n = 47442299 and 47442308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18369 + ... + 20791.

It is an arithmetic number, because the mean of its divisors is an integer number (2290680).

Almost surely, 2^47442340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47442340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54976320).

47442340 is an abundant number, since it is smaller than the sum of its proper divisors (62510300).

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

47442340 is a wasteful number, since it uses less digits than its factorization.

47442340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 47442340 is about 6887.8400097563. The cubic root of 47442340 is about 362.0112223457.

The spelling of 47442340 in words is "forty-seven million, four hundred forty-two thousand, three hundred forty".