400432103 has 2 divisors, whose sum is σ = 400432104. Its totient is φ = 400432102.

The previous prime is 400432091. The next prime is 400432141. The reversal of 400432103 is 301234004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400432103 - 2⁸ = 400431847 is a prime.

It is a super-2 number, since 2×400432103² = 320691738226005218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400432003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200216051 + 200216052.

It is an arithmetic number, because the mean of its divisors is an integer number (200216052).

Almost surely, 2^400432103 is an apocalyptic number.

400432103 is a deficient number, since it is larger than the sum of its proper divisors (1).

400432103 is an equidigital number, since it uses as much as digits as its factorization.

400432103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 400432103 is about 20010.7996591840. The cubic root of 400432103 is about 737.0715177602.

Adding to 400432103 its reverse (301234004), we get a palindrome (701666107).

The spelling of 400432103 in words is "four hundred million, four hundred thirty-two thousand, one hundred three".