400105303 has 6 divisors (see below), whose sum is σ = 433250304. Its totient is φ = 369327816.

The previous prime is 400105301. The next prime is 400105331. The reversal of 400105303 is 303501004.

It is not a de Polignac number, because 400105303 - 2¹ = 400105301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400105301) 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 5 ways as a sum of consecutive naturals, for example, 1183575 + ... + 1183912.

It is an arithmetic number, because the mean of its divisors is an integer number (72208384).

Almost surely, 2^400105303 is an apocalyptic number.

400105303 is a deficient number, since it is larger than the sum of its proper divisors (33145001).

400105303 is a wasteful number, since it uses less digits than its factorization.

400105303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367513 (or 2367500 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 400105303 is about 20002.6324017615. The cubic root of 400105303 is about 736.8709506499.

Adding to 400105303 its reverse (303501004), we get a palindrome (703606307).

The spelling of 400105303 in words is "four hundred million, one hundred five thousand, three hundred three".