40042335 has 16 divisors (see below), whose sum is σ = 64880640. Its totient is φ = 21084960.

The previous prime is 40042313. The next prime is 40042339. The reversal of 40042335 is 53324004.

It is a happy number.

It is not a de Polignac number, because 40042335 - 2⁹ = 40041823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40042339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15711 + ... + 18080.

It is an arithmetic number, because the mean of its divisors is an integer number (4055040).

Almost surely, 2^40042335 is an apocalyptic number.

40042335 is a deficient number, since it is larger than the sum of its proper divisors (24838305).

40042335 is a wasteful number, since it uses less digits than its factorization.

40042335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33878.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 40042335 is about 6327.9013108613. The cubic root of 40042335 is about 342.1157998478.

Adding to 40042335 its reverse (53324004), we get a palindrome (93366339).

The spelling of 40042335 in words is "forty million, forty-two thousand, three hundred thirty-five".