42947448 has 48 divisors (see below), whose sum is σ = 113339880. Its totient is φ = 13559616.

The previous prime is 42947447. The next prime is 42947453. The reversal of 42947448 is 84474924.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42947447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6186 + ... + 11142.

Almost surely, 2^42947448 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 42947448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56669940).

42947448 is an abundant number, since it is smaller than the sum of its proper divisors (70392432).

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

42947448 is a wasteful number, since it uses less digits than its factorization.

42947448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004 (or 4981 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 42947448 is about 6553.4302468249. The cubic root of 42947448 is about 350.1970264815.

The spelling of 42947448 in words is "forty-two million, nine hundred forty-seven thousand, four hundred forty-eight".