400054225 has 12 divisors (see below), whose sum is σ = 512070400. Its totient is φ = 309718800.

The previous prime is 400054223. The next prime is 400054247. The reversal of 400054225 is 522450004.

It is not a de Polignac number, because 400054225 - 2¹ = 400054223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400054196 and 400054205.

It is not an unprimeable number, because it can be changed into a prime (400054223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257325 + ... + 258874.

Almost surely, 2^400054225 is an apocalyptic number.

It is an amenable number.

400054225 is a deficient number, since it is larger than the sum of its proper divisors (112016175).

400054225 is a wasteful number, since it uses less digits than its factorization.

400054225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516240 (or 516235 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 400054225 is about 20001.3555790601. The cubic root of 400054225 is about 736.8395926584.

The spelling of 400054225 in words is "four hundred million, fifty-four thousand, two hundred twenty-five".