400488085 has 8 divisors (see below), whose sum is σ = 480984120. Its totient is φ = 320124864.

The previous prime is 400488083. The next prime is 400488107. The reversal of 400488085 is 580884004.

It can be written as a sum of positive squares in 4 ways, for example, as 30272004 + 370216081 = 5502^2 + 19241^2 .

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 400488085 - 2¹ = 400488083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400488083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26442 + ... + 38731.

It is an arithmetic number, because the mean of its divisors is an integer number (60123015).

Almost surely, 2^400488085 is an apocalyptic number.

It is an amenable number.

400488085 is a deficient number, since it is larger than the sum of its proper divisors (80496035).

400488085 is a wasteful number, since it uses less digits than its factorization.

400488085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66407.

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 400488085 is about 20012.1984049729. The cubic root of 400488085 is about 737.1058646691.

The spelling of 400488085 in words is "four hundred million, four hundred eighty-eight thousand, eighty-five".