40400024434 has 32 divisors (see below), whose sum is σ = 76246473600. Its totient is φ = 15595856640.

The previous prime is 40400024419. The next prime is 40400024447. The reversal of 40400024434 is 43442000404.

It is a junction number, because it is equal to n+sod(n) for n = 40400024399 and 40400024408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1186599 + ... + 1220170.

It is an arithmetic number, because the mean of its divisors is an integer number (2382702300).

Almost surely, 2^40400024434 is an apocalyptic number.

40400024434 is a deficient number, since it is larger than the sum of its proper divisors (35846449166).

40400024434 is a wasteful number, since it uses less digits than its factorization.

40400024434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406898.

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 40400024434 its reverse (43442000404), we get a palindrome (83842024838).

The spelling of 40400024434 in words is "forty billion, four hundred million, twenty-four thousand, four hundred thirty-four".