400376312485 has 8 divisors (see below), whose sum is σ = 483228752760. Its totient is φ = 318449598144.

The previous prime is 400376312471. The next prime is 400376312507. The reversal of 400376312485 is 584213673004.

It can be written as a sum of positive squares in 4 ways, for example, as 56743527681 + 343632784804 = 238209^2 + 586202^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400376312485 - 2¹¹ = 400376310437 is a prime.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 231430530 + ... + 231432259.

It is an arithmetic number, because the mean of its divisors is an integer number (60403594095).

Almost surely, 2^400376312485 is an apocalyptic number.

It is an amenable number.

400376312485 is a deficient number, since it is larger than the sum of its proper divisors (82852440275).

400376312485 is a wasteful number, since it uses less digits than its factorization.

400376312485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462862967.

The product of its (nonzero) digits is 483840, while the sum is 43.

Adding to 400376312485 its reverse (584213673004), we get a palindrome (984589985489).

The spelling of 400376312485 in words is "four hundred billion, three hundred seventy-six million, three hundred twelve thousand, four hundred eighty-five".