40303042 has 16 divisors (see below), whose sum is σ = 65210040. Its totient is φ = 18571392.

The previous prime is 40303037. The next prime is 40303049. The reversal of 40303042 is 24030304.

It can be written as a sum of positive squares in 4 ways, for example, as 31236921 + 9066121 = 5589^2 + 3011^2 .

It is not an unprimeable number, because it can be changed into a prime (40303049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28668 + ... + 30040.

Almost surely, 2^40303042 is an apocalyptic number.

40303042 is a deficient number, since it is larger than the sum of its proper divisors (24906998).

40303042 is a wasteful number, since it uses less digits than its factorization.

40303042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40303042 is about 6348.4676891357. The cubic root of 40303042 is about 342.8566749828.

Adding to 40303042 its reverse (24030304), we get a palindrome (64333346).

It can be divided in two parts, 4030304 and 2, that multiplied together give a palindrome (8060608).

The spelling of 40303042 in words is "forty million, three hundred three thousand, forty-two".