42271648 has 24 divisors (see below), whose sum is σ = 83375460. Its totient is φ = 21096960.

The previous prime is 42271643. The next prime is 42271661. The reversal of 42271648 is 84617224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40602384 + 1669264 = 6372^2 + 1292^2 .

It is not an unprimeable number, because it can be changed into a prime (42271643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25468 + ... + 27076.

Almost surely, 2^42271648 is an apocalyptic number.

It is an amenable number.

42271648 is a deficient number, since it is larger than the sum of its proper divisors (41103812).

42271648 is a wasteful number, since it uses less digits than its factorization.

42271648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440 (or 2432 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 42271648 is about 6501.6650175167. The cubic root of 42271648 is about 348.3504638650.

The spelling of 42271648 in words is "forty-two million, two hundred seventy-one thousand, six hundred forty-eight".