10400440019 has 2 divisors, whose sum is σ = 10400440020. Its totient is φ = 10400440018.

The previous prime is 10400440009. The next prime is 10400440021. The reversal of 10400440019 is 91004400401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10400440019 - 2¹⁶ = 10400374483 is a prime.

It is a super-2 number, since 2×10400440019² (a number of 21 digits) contains 22 as substring.

Together with 10400440021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10400439976 and 10400440003.

It is not a weakly prime, because it can be changed into another prime (10400440009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200220009 + 5200220010.

It is an arithmetic number, because the mean of its divisors is an integer number (5200220010).

Almost surely, 2^10400440019 is an apocalyptic number.

10400440019 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400440019 is an equidigital number, since it uses as much as digits as its factorization.

10400440019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 10400440019 in words is "ten billion, four hundred million, four hundred forty thousand, nineteen".