42306248 has 8 divisors (see below), whose sum is σ = 79324230. Its totient is φ = 21153120.

The previous prime is 42306247. The next prime is 42306287. The reversal of 42306248 is 84260324.

It can be written as a sum of positive squares in only one way, i.e., 36264484 + 6041764 = 6022^2 + 2458^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 42306248.

It is not an unprimeable number, because it can be changed into a prime (42306247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2644133 + ... + 2644148.

Almost surely, 2^42306248 is an apocalyptic number.

It is an amenable number.

42306248 is a deficient number, since it is larger than the sum of its proper divisors (37017982).

42306248 is a wasteful number, since it uses less digits than its factorization.

42306248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5288287 (or 5288283 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 42306248 is about 6504.3253301169. The cubic root of 42306248 is about 348.4454813658.

The spelling of 42306248 in words is "forty-two million, three hundred six thousand, two hundred forty-eight".