400608159 has 16 divisors (see below), whose sum is σ = 618815232. Its totient is φ = 225782208.

The previous prime is 400608151. The next prime is 400608161. The reversal of 400608159 is 951806004.

It is not a de Polignac number, because 400608159 - 2³ = 400608151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400608151) 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, 129129 + ... + 132194.

It is an arithmetic number, because the mean of its divisors is an integer number (38675952).

Almost surely, 2^400608159 is an apocalyptic number.

400608159 is a deficient number, since it is larger than the sum of its proper divisors (218207073).

400608159 is a wasteful number, since it uses less digits than its factorization.

400608159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261406.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 400608159 is about 20015.1982003676. The cubic root of 400608159 is about 737.1795234612.

The spelling of 400608159 in words is "four hundred million, six hundred eight thousand, one hundred fifty-nine".