42231016 has 8 divisors (see below), whose sum is σ = 79183170. Its totient is φ = 21115504.

The previous prime is 42230999. The next prime is 42231019. The reversal of 42231016 is 61013224.

It can be written as a sum of positive squares in only one way, i.e., 39816100 + 2414916 = 6310^2 + 1554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 42230984 and 42231002.

It is not an unprimeable number, because it can be changed into a prime (42231019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639431 + ... + 2639446.

Almost surely, 2^42231016 is an apocalyptic number.

It is an amenable number.

42231016 is a deficient number, since it is larger than the sum of its proper divisors (36952154).

42231016 is a wasteful number, since it uses less digits than its factorization.

42231016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5278883 (or 5278879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 42231016 is about 6498.5395282325. The cubic root of 42231016 is about 348.2388152448.

The spelling of 42231016 in words is "forty-two million, two hundred thirty-one thousand, sixteen".