4040242 has 8 divisors (see below), whose sum is σ = 6095916. Its totient is φ = 2008272.

The previous prime is 4040233. The next prime is 4040279. The reversal of 4040242 is 2420404.

It can be written as a sum of positive squares in 2 ways, for example, as 3316041 + 724201 = 1821^2 + 851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5493 + ... + 6184.

Almost surely, 2^4040242 is an apocalyptic number.

4040242 is a deficient number, since it is larger than the sum of its proper divisors (2055674).

4040242 is a wasteful number, since it uses less digits than its factorization.

4040242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11852.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4040242 is about 2010.0353230727. The cubic root of 4040242 is about 159.2706648656.

Adding to 4040242 its reverse (2420404), we get a palindrome (6460646).

The spelling of 4040242 in words is "four million, forty thousand, two hundred forty-two".