400364203 has 4 divisors (see below), whose sum is σ = 400516768. Its totient is φ = 400211640.

The previous prime is 400364177. The next prime is 400364207. The reversal of 400364203 is 302463004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400364203 - 2¹⁷ = 400233131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400364207) 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 3 ways as a sum of consecutive naturals, for example, 72276 + ... + 77617.

It is an arithmetic number, because the mean of its divisors is an integer number (100129192).

Almost surely, 2^400364203 is an apocalyptic number.

400364203 is a deficient number, since it is larger than the sum of its proper divisors (152565).

400364203 is a wasteful number, since it uses less digits than its factorization.

400364203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152564.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 400364203 is about 20009.1030033832. The cubic root of 400364203 is about 737.0298544464.

The spelling of 400364203 in words is "four hundred million, three hundred sixty-four thousand, two hundred three".