40535434 has 4 divisors (see below), whose sum is σ = 60803154. Its totient is φ = 20267716.

The previous prime is 40535431. The next prime is 40535447. The reversal of 40535434 is 43453504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24157225 + 16378209 = 4915^2 + 4047^2 .

It is not an unprimeable number, because it can be changed into a prime (40535431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133857 + ... + 10133860.

Almost surely, 2^40535434 is an apocalyptic number.

40535434 is a deficient number, since it is larger than the sum of its proper divisors (20267720).

40535434 is a wasteful number, since it uses less digits than its factorization.

40535434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20267719.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 40535434 is about 6366.7443799795. The cubic root of 40535434 is about 343.5143961755.

Adding to 40535434 its reverse (43453504), we get a palindrome (83988938).

The spelling of 40535434 in words is "forty million, five hundred thirty-five thousand, four hundred thirty-four".