400480903 has 2 divisors, whose sum is σ = 400480904. Its totient is φ = 400480902.

The previous prime is 400480867. The next prime is 400480943. The reversal of 400480903 is 309084004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400480903 - 2²¹ = 398383751 is a prime.

It is a super-3 number, since 3×400480903³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400480943) 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 as a sum of consecutive naturals, namely, 200240451 + 200240452.

It is an arithmetic number, because the mean of its divisors is an integer number (200240452).

Almost surely, 2^400480903 is an apocalyptic number.

400480903 is a deficient number, since it is larger than the sum of its proper divisors (1).

400480903 is an equidigital number, since it uses as much as digits as its factorization.

400480903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 400480903 is about 20012.0189636128. The cubic root of 400480903 is about 737.1014584407.

The spelling of 400480903 in words is "four hundred million, four hundred eighty thousand, nine hundred three".