1402443401 has 2 divisors, whose sum is σ = 1402443402. Its totient is φ = 1402443400.

The previous prime is 1402443389. The next prime is 1402443421. The reversal of 1402443401 is 1043442041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1066087801 + 336355600 = 32651^2 + 18340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402443401 - 2⁶ = 1402443337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1402443421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701221700 + 701221701.

It is an arithmetic number, because the mean of its divisors is an integer number (701221701).

Almost surely, 2^1402443401 is an apocalyptic number.

It is an amenable number.

1402443401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402443401 is an equidigital number, since it uses as much as digits as its factorization.

1402443401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1402443401 is about 37449.2109529694. The cubic root of 1402443401 is about 1119.3393747071.

Adding to 1402443401 its reverse (1043442041), we get a palindrome (2445885442).

The spelling of 1402443401 in words is "one billion, four hundred two million, four hundred forty-three thousand, four hundred one".