40242404 has 6 divisors (see below), whose sum is σ = 70424214. Its totient is φ = 20121200.

The previous prime is 40242403. The next prime is 40242407. The reversal of 40242404 is 40424204.

It can be written as a sum of positive squares in only one way, i.e., 39664804 + 577600 = 6298^2 + 760^2 .

It is not an unprimeable number, because it can be changed into a prime (40242403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030297 + ... + 5030304.

It is an arithmetic number, because the mean of its divisors is an integer number (11737369).

Almost surely, 2^40242404 is an apocalyptic number.

It is an amenable number.

40242404 is a deficient number, since it is larger than the sum of its proper divisors (30181810).

40242404 is a wasteful number, since it uses less digits than its factorization.

40242404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060605 (or 10060603 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40242404 is about 6343.6900933132. The cubic root of 40242404 is about 342.6846401739.

Adding to 40242404 its reverse (40424204), we get a palindrome (80666608).

The spelling of 40242404 in words is "forty million, two hundred forty-two thousand, four hundred four".