1420404403 has 8 divisors (see below), whose sum is σ = 1552178880. Its totient is φ = 1289071080.

The previous prime is 1420404389. The next prime is 1420404421. The reversal of 1420404403 is 3044040241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1420404403 - 2⁵ = 1420404371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420404473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103533 + ... + 116446.

It is an arithmetic number, because the mean of its divisors is an integer number (194022360).

Almost surely, 2^1420404403 is an apocalyptic number.

1420404403 is a deficient number, since it is larger than the sum of its proper divisors (131774477).

1420404403 is a wasteful number, since it uses less digits than its factorization.

1420404403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220577.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1420404403 is about 37688.2528515186. The cubic root of 1420404403 is about 1124.0975552561.

Adding to 1420404403 its reverse (3044040241), we get a palindrome (4464444644).

The spelling of 1420404403 in words is "one billion, four hundred twenty million, four hundred four thousand, four hundred three".