400447371 has 8 divisors (see below), whose sum is σ = 542683024. Its totient is φ = 262588320.

The previous prime is 400447351. The next prime is 400447381. The reversal of 400447371 is 173744004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400447371 - 2²⁶ = 333338507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400447321) 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 7 ways as a sum of consecutive naturals, for example, 1093936 + ... + 1094301.

It is an arithmetic number, because the mean of its divisors is an integer number (67835378).

Almost surely, 2^400447371 is an apocalyptic number.

400447371 is a deficient number, since it is larger than the sum of its proper divisors (142235653).

400447371 is a wasteful number, since it uses less digits than its factorization.

400447371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188301.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 400447371 is about 20011.1811495474. The cubic root of 400447371 is about 737.0808855280.

The spelling of 400447371 in words is "four hundred million, four hundred forty-seven thousand, three hundred seventy-one".