40373400434 has 4 divisors (see below), whose sum is σ = 60560100654. Its totient is φ = 20186700216.

The previous prime is 40373400433. The next prime is 40373400437. The reversal of 40373400434 is 43400437304.

40373400434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 37370689225 + 3002711209 = 193315^2 + 54797^2 .

It is a super-2 number, since 2×40373400434² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40373400434.

It is not an unprimeable number, because it can be changed into a prime (40373400433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10093350107 + ... + 10093350110.

Almost surely, 2^40373400434 is an apocalyptic number.

40373400434 is a deficient number, since it is larger than the sum of its proper divisors (20186700220).

40373400434 is a wasteful number, since it uses less digits than its factorization.

40373400434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20186700219.

The product of its (nonzero) digits is 48384, while the sum is 32.

Adding to 40373400434 its reverse (43400437304), we get a palindrome (83773837738).

The spelling of 40373400434 in words is "forty billion, three hundred seventy-three million, four hundred thousand, four hundred thirty-four".