42471312 has 80 divisors (see below), whose sum is σ = 122283840. Its totient is φ = 12612096.

The previous prime is 42471307. The next prime is 42471313. The reversal of 42471312 is 21317424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (42471313) 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, 16923 + ... + 19269.

It is an arithmetic number, because the mean of its divisors is an integer number (1528548).

Almost surely, 2^42471312 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 42471312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61141920).

42471312 is an abundant number, since it is smaller than the sum of its proper divisors (79812528).

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

42471312 is a wasteful number, since it uses less digits than its factorization.

42471312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400 (or 2394 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 42471312 is about 6517.0017646154. The cubic root of 42471312 is about 348.8980635672.

Adding to 42471312 its reverse (21317424), we get a palindrome (63788736).

The spelling of 42471312 in words is "forty-two million, four hundred seventy-one thousand, three hundred twelve".