1420014401 has 4 divisors (see below), whose sum is σ = 1529246292. Its totient is φ = 1310782512.

The previous prime is 1420014397. The next prime is 1420014439. The reversal of 1420014401 is 1044100241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1044100241 = 487 ⋅2143943.

It can be written as a sum of positive squares in 2 ways, for example, as 523311376 + 896703025 = 22876^2 + 29945^2 .

It is not a de Polignac number, because 1420014401 - 2² = 1420014397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420014401.

It is not an unprimeable number, because it can be changed into a prime (1420014451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54615926 + ... + 54615951.

It is an arithmetic number, because the mean of its divisors is an integer number (382311573).

Almost surely, 2^1420014401 is an apocalyptic number.

It is an amenable number.

1420014401 is a deficient number, since it is larger than the sum of its proper divisors (109231891).

1420014401 is a wasteful number, since it uses less digits than its factorization.

1420014401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109231890.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1420014401 is about 37683.0784437790. The cubic root of 1420014401 is about 1123.9946642710.

Adding to 1420014401 its reverse (1044100241), we get a palindrome (2464114642).

The spelling of 1420014401 in words is "one billion, four hundred twenty million, fourteen thousand, four hundred one".