400142544034 has 4 divisors (see below), whose sum is σ = 600213816054. Its totient is φ = 200071272016.

The previous prime is 400142544023. The next prime is 400142544041. The reversal of 400142544034 is 430445241004.

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., 268008113025 + 132134431009 = 517695^2 + 363503^2 .

It is a super-2 number, since 2×400142544034² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 400142543987 and 400142544005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100035636007 + ... + 100035636010.

Almost surely, 2^400142544034 is an apocalyptic number.

400142544034 is a deficient number, since it is larger than the sum of its proper divisors (200071272020).

400142544034 is a wasteful number, since it uses less digits than its factorization.

400142544034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200071272019.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 400142544034 its reverse (430445241004), we get a palindrome (830587785038).

The spelling of 400142544034 in words is "four hundred billion, one hundred forty-two million, five hundred forty-four thousand, thirty-four".