400454223 has 16 divisors (see below), whose sum is σ = 576169440. Its totient is φ = 245937024.

The previous prime is 400454221. The next prime is 400454231. The reversal of 400454223 is 322454004.

It is not a de Polignac number, because 400454223 - 2¹ = 400454221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400454193 and 400454202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400454221) 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, 9765 + ... + 29937.

It is an arithmetic number, because the mean of its divisors is an integer number (36010590).

Almost surely, 2^400454223 is an apocalyptic number.

400454223 is a deficient number, since it is larger than the sum of its proper divisors (175715217).

400454223 is a wasteful number, since it uses less digits than its factorization.

400454223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20698.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 400454223 is about 20011.3523531020. The cubic root of 400454223 is about 737.0850895340.

The spelling of 400454223 in words is "four hundred million, four hundred fifty-four thousand, two hundred twenty-three".