42246536 has 8 divisors (see below), whose sum is σ = 79212270. Its totient is φ = 21123264.

The previous prime is 42246527. The next prime is 42246539. The reversal of 42246536 is 63564224.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 3880900 = 6194^2 + 1970^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42246539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2640401 + ... + 2640416.

Almost surely, 2^42246536 is an apocalyptic number.

It is an amenable number.

42246536 is a deficient number, since it is larger than the sum of its proper divisors (36965734).

42246536 is a wasteful number, since it uses less digits than its factorization.

42246536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280823 (or 5280819 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 42246536 is about 6499.7335329996. The cubic root of 42246536 is about 348.2814695542.

The spelling of 42246536 in words is "forty-two million, two hundred forty-six thousand, five hundred thirty-six".