400312514534 has 4 divisors (see below), whose sum is σ = 600468771804. Its totient is φ = 200156257266.

The previous prime is 400312514491. The next prime is 400312514557. The reversal of 400312514534 is 435415213004.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×400312514534² (a number of 24 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 400312514534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100078128632 + ... + 100078128635.

It is an arithmetic number, because the mean of its divisors is an integer number (150117192951).

Almost surely, 2^400312514534 is an apocalyptic number.

400312514534 is a deficient number, since it is larger than the sum of its proper divisors (200156257270).

400312514534 is a wasteful number, since it uses less digits than its factorization.

400312514534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200156257269.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 400312514534 its reverse (435415213004), we get a palindrome (835727727538).

The spelling of 400312514534 in words is "four hundred billion, three hundred twelve million, five hundred fourteen thousand, five hundred thirty-four".