4000400003 has 8 divisors (see below), whose sum is σ = 4129381872. Its totient is φ = 3872516256.

The previous prime is 4000399981. The next prime is 4000400023. The reversal of 4000400003 is 3000040004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4000400003 - 2⁸ = 4000399747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4000400023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267125 + ... + 281702.

It is an arithmetic number, because the mean of its divisors is an integer number (516172734).

Almost surely, 2^4000400003 is an apocalyptic number.

4000400003 is a deficient number, since it is larger than the sum of its proper divisors (128981869).

4000400003 is a wasteful number, since it uses less digits than its factorization.

4000400003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549061.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 4000400003 is about 63248.7154256907. The cubic root of 4000400003 is about 1587.4539639697.

Adding to 4000400003 its reverse (3000040004), we get a palindrome (7000440007).

The spelling of 4000400003 in words is "four billion, four hundred thousand, three".