40331242 has 32 divisors (see below), whose sum is σ = 74003328. Its totient is φ = 16091136.

The previous prime is 40331237. The next prime is 40331261. The reversal of 40331242 is 24213304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22213 + ... + 23959.

It is an arithmetic number, because the mean of its divisors is an integer number (2312604).

Almost surely, 2^40331242 is an apocalyptic number.

40331242 is a deficient number, since it is larger than the sum of its proper divisors (33672086).

40331242 is a wasteful number, since it uses less digits than its factorization.

40331242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 40331242 is about 6350.6883091520. The cubic root of 40331242 is about 342.9366218355.

Adding to 40331242 its reverse (24213304), we get a palindrome (64544546).

The spelling of 40331242 in words is "forty million, three hundred thirty-one thousand, two hundred forty-two".