40400067034 has 4 divisors (see below), whose sum is σ = 60600100554. Its totient is φ = 20200033516.

The previous prime is 40400067017. The next prime is 40400067073. The reversal of 40400067034 is 43076000404.

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., 24650570025 + 15749497009 = 157005^2 + 125497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40400066993 and 40400067011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100016757 + ... + 10100016760.

Almost surely, 2^40400067034 is an apocalyptic number.

40400067034 is a deficient number, since it is larger than the sum of its proper divisors (20200033520).

40400067034 is a wasteful number, since it uses less digits than its factorization.

40400067034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20200033519.

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 40400067034 its reverse (43076000404), we get a palindrome (83476067438).

The spelling of 40400067034 in words is "forty billion, four hundred million, sixty-seven thousand, thirty-four".