1401444019 has 2 divisors, whose sum is σ = 1401444020. Its totient is φ = 1401444018.

The previous prime is 1401443993. The next prime is 1401444043. The reversal of 1401444019 is 9104441041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401444019 - 2²¹ = 1399346867 is a prime.

It is a super-2 number, since 2×1401444019² = 3928090676781744722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1401544019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700722009 + 700722010.

It is an arithmetic number, because the mean of its divisors is an integer number (700722010).

Almost surely, 2^1401444019 is an apocalyptic number.

1401444019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401444019 is an equidigital number, since it uses as much as digits as its factorization.

1401444019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1401444019 is about 37435.8654100583. The cubic root of 1401444019 is about 1119.0734308922.

The spelling of 1401444019 in words is "one billion, four hundred one million, four hundred forty-four thousand, nineteen".