40321434434 has 8 divisors (see below), whose sum is σ = 60488696268. Its totient is φ = 20158535680.

The previous prime is 40321434403. The next prime is 40321434449. The reversal of 40321434434 is 43443412304.

It can be written as a sum of positive squares in 2 ways, for example, as 39634837225 + 686597209 = 199085^2 + 26203^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40321434434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067567 + ... + 1104690.

Almost surely, 2^40321434434 is an apocalyptic number.

40321434434 is a deficient number, since it is larger than the sum of its proper divisors (20167261834).

40321434434 is a wasteful number, since it uses less digits than its factorization.

40321434434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181540.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 40321434434 its reverse (43443412304), we get a palindrome (83764846738).

The spelling of 40321434434 in words is "forty billion, three hundred twenty-one million, four hundred thirty-four thousand, four hundred thirty-four".