40323242 has 8 divisors (see below), whose sum is σ = 61040100. Its totient is φ = 19976544.

The previous prime is 40323233. The next prime is 40323247. The reversal of 40323242 is 24232304.

It can be written as a sum of positive squares in 2 ways, for example, as 38551681 + 1771561 = 6209^2 + 1331^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40323247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92267 + ... + 92702.

Almost surely, 2^40323242 is an apocalyptic number.

40323242 is a deficient number, since it is larger than the sum of its proper divisors (20716858).

40323242 is a wasteful number, since it uses less digits than its factorization.

40323242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185080.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40323242 is about 6350.0584249281. The cubic root of 40323242 is about 342.9139456647.

Adding to 40323242 its reverse (24232304), we get a palindrome (64555546).

The spelling of 40323242 in words is "forty million, three hundred twenty-three thousand, two hundred forty-two".