42271516 has 36 divisors (see below), whose sum is σ = 89803728. Its totient is φ = 17326848.

The previous prime is 42271513. The next prime is 42271517. The reversal of 42271516 is 61517224.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42271511) 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, 181 + ... + 9196.

It is an arithmetic number, because the mean of its divisors is an integer number (2494548).

Almost surely, 2^42271516 is an apocalyptic number.

42271516 is a gapful number since it is divisible by the number (46) 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 42271516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44901864).

42271516 is an abundant number, since it is smaller than the sum of its proper divisors (47532212).

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

42271516 is a wasteful number, since it uses less digits than its factorization.

42271516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9418 (or 9409 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 42271516 is about 6501.6548662629. The cubic root of 42271516 is about 348.3501012713.

The spelling of 42271516 in words is "forty-two million, two hundred seventy-one thousand, five hundred sixteen".