400159347 has 16 divisors (see below), whose sum is σ = 614572032. Its totient is φ = 226860480.

The previous prime is 400159343. The next prime is 400159367. The reversal of 400159347 is 743951004.

It is not a de Polignac number, because 400159347 - 2² = 400159343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400159343) by changing a digit.

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, 72354 + ... + 77687.

It is an arithmetic number, because the mean of its divisors is an integer number (38410752).

Almost surely, 2^400159347 is an apocalyptic number.

400159347 is a deficient number, since it is larger than the sum of its proper divisors (214412685).

400159347 is a wasteful number, since it uses less digits than its factorization.

400159347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150178.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 400159347 is about 20003.9832783373. The cubic root of 400159347 is about 736.9041266334.

The spelling of 400159347 in words is "four hundred million, one hundred fifty-nine thousand, three hundred forty-seven".