40024434 has 16 divisors (see below), whose sum is σ = 81559872. Its totient is φ = 13089648.

The previous prime is 40024433. The next prime is 40024447. The reversal of 40024434 is 43442004.

40024434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40024434.

It is not an unprimeable number, because it can be changed into a prime (40024433) 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 7 ways as a sum of consecutive naturals, for example, 62614 + ... + 63249.

It is an arithmetic number, because the mean of its divisors is an integer number (5097492).

Almost surely, 2^40024434 is an apocalyptic number.

40024434 is an abundant number, since it is smaller than the sum of its proper divisors (41535438).

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

40024434 is a wasteful number, since it uses less digits than its factorization.

40024434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125921.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 40024434 is about 6326.4867027443. The cubic root of 40024434 is about 342.0648110816.

Adding to 40024434 its reverse (43442004), we get a palindrome (83466438).

The spelling of 40024434 in words is "forty million, twenty-four thousand, four hundred thirty-four".