40033434 has 32 divisors (see below), whose sum is σ = 91771776. Its totient is φ = 11404800.

The previous prime is 40033429. The next prime is 40033439. The reversal of 40033434 is 43433004.

40033434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40033429) and next prime (40033439).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 40033434.

It is not an unprimeable number, because it can be changed into a prime (40033439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15654 + ... + 18030.

It is an arithmetic number, because the mean of its divisors is an integer number (2867868).

Almost surely, 2^40033434 is an apocalyptic number.

40033434 is an abundant number, since it is smaller than the sum of its proper divisors (51738342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40033434 is a wasteful number, since it uses less digits than its factorization.

40033434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 40033434 is about 6327.1979580222. The cubic root of 40033434 is about 342.0904483592.

Adding to 40033434 its reverse (43433004), we get a palindrome (83466438).

The spelling of 40033434 in words is "forty million, thirty-three thousand, four hundred thirty-four".