4004440440397 has 2 divisors, whose sum is σ = 4004440440398. Its totient is φ = 4004440440396.

The previous prime is 4004440440361. The next prime is 4004440440457. The reversal of 4004440440397 is 7930440444004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3961827508356 + 42612932041 = 1990434^2 + 206429^2 .

It is a cyclic number.

It is not a de Polignac number, because 4004440440397 - 2²⁷ = 4004306222669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4004440440337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2002220220198 + 2002220220199.

It is an arithmetic number, because the mean of its divisors is an integer number (2002220220199).

Almost surely, 2^{4004440440397} is an apocalyptic number.

It is an amenable number.

4004440440397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4004440440397 is an equidigital number, since it uses as much as digits as its factorization.

4004440440397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 4004440440397 in words is "four trillion, four billion, four hundred forty million, four hundred forty thousand, three hundred ninety-seven".