400117485 has 16 divisors (see below), whose sum is σ = 673882560. Its totient is φ = 202164480.

The previous prime is 400117463. The next prime is 400117493. The reversal of 400117485 is 584711004.

It is not a de Polignac number, because 400117485 - 2⁸ = 400117229 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 15 ways as a sum of consecutive naturals, for example, 701676 + ... + 702245.

It is an arithmetic number, because the mean of its divisors is an integer number (42117660).

Almost surely, 2^400117485 is an apocalyptic number.

It is an amenable number.

400117485 is a deficient number, since it is larger than the sum of its proper divisors (273765075).

400117485 is a wasteful number, since it uses less digits than its factorization.

400117485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403948.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 400117485 is about 20002.9369093641. The cubic root of 400117485 is about 736.8784290735.

Adding to 400117485 its reverse (584711004), we get a palindrome (984828489).

The spelling of 400117485 in words is "four hundred million, one hundred seventeen thousand, four hundred eighty-five".