400412043003 has 48 divisors (see below), whose sum is σ = 648197185536. Its totient is φ = 218808817920.

The previous prime is 400412042999. The next prime is 400412043019. The reversal of 400412043003 is 300340214004.

It is not a de Polignac number, because 400412043003 - 2² = 400412042999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (400412043043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18594883 + ... + 18616403.

It is an arithmetic number, because the mean of its divisors is an integer number (13504108032).

Almost surely, 2^400412043003 is an apocalyptic number.

400412043003 is a deficient number, since it is larger than the sum of its proper divisors (247785142533).

400412043003 is a wasteful number, since it uses less digits than its factorization.

400412043003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27064 (or 27057 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 400412043003 its reverse (300340214004), we get a palindrome (700752257007).

The spelling of 400412043003 in words is "four hundred billion, four hundred twelve million, forty-three thousand, three".