400272323 has 8 divisors (see below), whose sum is σ = 439803840. Its totient is φ = 361264680.

The previous prime is 400272319. The next prime is 400272409. The reversal of 400272323 is 323272004.

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

It is a cyclic number.

It is not a de Polignac number, because 400272323 - 2² = 400272319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400272023) 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, 129365 + ... + 132422.

It is an arithmetic number, because the mean of its divisors is an integer number (54975480).

Almost surely, 2^400272323 is an apocalyptic number.

400272323 is a deficient number, since it is larger than the sum of its proper divisors (39531517).

400272323 is a wasteful number, since it uses less digits than its factorization.

400272323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261937.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 400272323 is about 20006.8069166471. The cubic root of 400272323 is about 736.9734695486.

The spelling of 400272323 in words is "four hundred million, two hundred seventy-two thousand, three hundred twenty-three".