40248442 has 16 divisors (see below), whose sum is σ = 65188872. Its totient is φ = 18527040.

The previous prime is 40248437. The next prime is 40248451. The reversal of 40248442 is 24484204.

It can be written as a sum of positive squares in 4 ways, for example, as 20079361 + 20169081 = 4481^2 + 4491^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40248442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9108 + ... + 12784.

Almost surely, 2^40248442 is an apocalyptic number.

40248442 is a deficient number, since it is larger than the sum of its proper divisors (24940430).

40248442 is a wasteful number, since it uses less digits than its factorization.

40248442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113.

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 40248442 is about 6344.1659814352. The cubic root of 40248442 is about 342.7017782022.

The spelling of 40248442 in words is "forty million, two hundred forty-eight thousand, four hundred forty-two".