400470159 has 4 divisors (see below), whose sum is σ = 533960216. Its totient is φ = 266980104.

The previous prime is 400470149. The next prime is 400470179. The reversal of 400470159 is 951074004.

It is a happy number.

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

It is not a de Polignac number, because 400470159 - 2⁴ = 400470143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400470149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66745024 + ... + 66745029.

It is an arithmetic number, because the mean of its divisors is an integer number (133490054).

Almost surely, 2^400470159 is an apocalyptic number.

400470159 is a deficient number, since it is larger than the sum of its proper divisors (133490057).

400470159 is a wasteful number, since it uses less digits than its factorization.

400470159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133490056.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 400470159 is about 20011.7505231302. The cubic root of 400470159 is about 737.0948667915.

The spelling of 400470159 in words is "four hundred million, four hundred seventy thousand, one hundred fifty-nine".