400332873 has 8 divisors (see below), whose sum is σ = 533869600. Its totient is φ = 266842368.

The previous prime is 400332851. The next prime is 400332931. The reversal of 400332873 is 378233004.

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

It is not a de Polignac number, because 400332873 - 2⁶ = 400332809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400332873.

It is not an unprimeable number, because it can be changed into a prime (400332833) 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, 28098 + ... + 39876.

It is an arithmetic number, because the mean of its divisors is an integer number (66733700).

Almost surely, 2^400332873 is an apocalyptic number.

It is an amenable number.

400332873 is a deficient number, since it is larger than the sum of its proper divisors (133536727).

400332873 is a wasteful number, since it uses less digits than its factorization.

400332873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23111.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 400332873 is about 20008.3200944007. The cubic root of 400332873 is about 737.0106288284.

Adding to 400332873 its reverse (378233004), we get a palindrome (778565877).

The spelling of 400332873 in words is "four hundred million, three hundred thirty-two thousand, eight hundred seventy-three".