400364228 has 48 divisors (see below), whose sum is σ = 795157440. Its totient is φ = 174787200.

The previous prime is 400364207. The next prime is 400364249. The reversal of 400364228 is 822463004.

It is an interprime number because it is at equal distance from previous prime (400364207) and next prime (400364249).

It is a self number, because there is not a number n which added to its sum of digits gives 400364228.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113678 + ... + 117146.

It is an arithmetic number, because the mean of its divisors is an integer number (16565780).

Almost surely, 2^400364228 is an apocalyptic number.

It is an amenable number.

400364228 is a deficient number, since it is larger than the sum of its proper divisors (394793212).

400364228 is a wasteful number, since it uses less digits than its factorization.

400364228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588 (or 3586 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 400364228 is about 20009.1036280989. The cubic root of 400364228 is about 737.0298697872.

The spelling of 400364228 in words is "four hundred million, three hundred sixty-four thousand, two hundred twenty-eight".