1400727401 has 2 divisors, whose sum is σ = 1400727402. Its totient is φ = 1400727400.

The previous prime is 1400727373. The next prime is 1400727421. The reversal of 1400727401 is 1047270041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 944947600 + 455779801 = 30740^2 + 21349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400727401 - 2¹⁰ = 1400726377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400727421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700363700 + 700363701.

It is an arithmetic number, because the mean of its divisors is an integer number (700363701).

Almost surely, 2^1400727401 is an apocalyptic number.

It is an amenable number.

1400727401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400727401 is an equidigital number, since it uses as much as digits as its factorization.

1400727401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 1400727401 is about 37426.2929101988. The cubic root of 1400727401 is about 1118.8826550729.

Adding to 1400727401 its reverse (1047270041), we get a palindrome (2447997442).

The spelling of 1400727401 in words is "one billion, four hundred million, seven hundred twenty-seven thousand, four hundred one".