400632103 has 4 divisors (see below), whose sum is σ = 406120288. Its totient is φ = 395143920.

The previous prime is 400632077. The next prime is 400632109. The reversal of 400632103 is 301236004.

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 400632103 - 2²⁵ = 367077671 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 (400632109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2743983 + ... + 2744128.

It is an arithmetic number, because the mean of its divisors is an integer number (101530072).

Almost surely, 2^400632103 is an apocalyptic number.

400632103 is a deficient number, since it is larger than the sum of its proper divisors (5488185).

400632103 is an equidigital number, since it uses as much as digits as its factorization.

400632103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488184.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 400632103 is about 20015.7963368935. The cubic root of 400632103 is about 737.1942100275.

Adding to 400632103 its reverse (301236004), we get a palindrome (701868107).

The spelling of 400632103 in words is "four hundred million, six hundred thirty-two thousand, one hundred three".