1420440201 has 24 divisors (see below), whose sum is σ = 2073367296. Its totient is φ = 937035360.

The previous prime is 1420440173. The next prime is 1420440221. The reversal of 1420440201 is 1020440241.

1420440201 is a `hidden beast` number, since 1 + 4 + 20 + 440 + 201 = 666.

It is not a de Polignac number, because 1420440201 - 2⁵ = 1420440169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1420440221) 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 23 ways as a sum of consecutive naturals, for example, 345166 + ... + 349256.

It is an arithmetic number, because the mean of its divisors is an integer number (86390304).

Almost surely, 2^1420440201 is an apocalyptic number.

It is an amenable number.

1420440201 is a deficient number, since it is larger than the sum of its proper divisors (652927095).

1420440201 is a wasteful number, since it uses less digits than its factorization.

1420440201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493 (or 4490 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1420440201 is about 37688.7277710458. The cubic root of 1420440201 is about 1124.1069986010.

Adding to 1420440201 its reverse (1020440241), we get a palindrome (2440880442).

The spelling of 1420440201 in words is "one billion, four hundred twenty million, four hundred forty thousand, two hundred one".