400364225 has 12 divisors (see below), whose sum is σ = 512467200. Its totient is φ = 309958800.

The previous prime is 400364207. The next prime is 400364249. The reversal of 400364225 is 522463004.

It is not a de Polignac number, because 400364225 - 2⁸ = 400363969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400364194 and 400364203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257525 + ... + 259074.

It is an arithmetic number, because the mean of its divisors is an integer number (42705600).

Almost surely, 2^400364225 is an apocalyptic number.

It is an amenable number.

400364225 is a deficient number, since it is larger than the sum of its proper divisors (112102975).

400364225 is a wasteful number, since it uses less digits than its factorization.

400364225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516640 (or 516635 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 400364225 is about 20009.1035531330. The cubic root of 400364225 is about 737.0298679463.

The spelling of 400364225 in words is "four hundred million, three hundred sixty-four thousand, two hundred twenty-five".