400143543434 has 32 divisors (see below), whose sum is σ = 616524327936. Its totient is φ = 194702946880.

The previous prime is 400143543433. The next prime is 400143543439. The reversal of 400143543434 is 434345341004.

It is a happy number.

It is a super-2 number, since 2×400143543434² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400143543394 and 400143543403.

It is not an unprimeable number, because it can be changed into a prime (400143543433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6996884 + ... + 7053840.

It is an arithmetic number, because the mean of its divisors is an integer number (19266385248).

Almost surely, 2^400143543434 is an apocalyptic number.

400143543434 is a deficient number, since it is larger than the sum of its proper divisors (216380784502).

400143543434 is a wasteful number, since it uses less digits than its factorization.

400143543434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57550.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 400143543434 its reverse (434345341004), we get a palindrome (834488884438).

The spelling of 400143543434 in words is "four hundred billion, one hundred forty-three million, five hundred forty-three thousand, four hundred thirty-four".