1406342401 has 6 divisors (see below), whose sum is σ = 1416701510. Its totient is φ = 1396058496.

The previous prime is 1406342393. The next prime is 1406342417. The reversal of 1406342401 is 1042436041.

It can be written as a sum of positive squares in 3 ways, for example, as 723879025 + 682463376 = 26905^2 + 26124^2 .

It is not a de Polignac number, because 1406342401 - 2³ = 1406342393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1406342461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18696 + ... + 56233.

Almost surely, 2^1406342401 is an apocalyptic number.

It is an amenable number.

1406342401 is a deficient number, since it is larger than the sum of its proper divisors (10359109).

1406342401 is an frugal number, since it uses more digits than its factorization.

1406342401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75203 (or 75066 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1406342401 is about 37501.2319930959. The cubic root of 1406342401 is about 1120.3757245481.

Adding to 1406342401 its reverse (1042436041), we get a palindrome (2448778442).

The spelling of 1406342401 in words is "one billion, four hundred six million, three hundred forty-two thousand, four hundred one".