1403228289 has 4 divisors (see below), whose sum is σ = 1870971056. Its totient is φ = 935485524.

The previous prime is 1403228273. The next prime is 1403228291. The reversal of 1403228289 is 9828223041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1403228289 - 2⁴ = 1403228273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1403228269) 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, 233871379 + ... + 233871384.

It is an arithmetic number, because the mean of its divisors is an integer number (467742764).

Almost surely, 2^1403228289 is an apocalyptic number.

It is an amenable number.

1403228289 is a deficient number, since it is larger than the sum of its proper divisors (467742767).

1403228289 is an equidigital number, since it uses as much as digits as its factorization.

1403228289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467742766.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1403228289 is about 37459.6888534862. The cubic root of 1403228289 is about 1119.5481513314.

The spelling of 1403228289 in words is "one billion, four hundred three million, two hundred twenty-eight thousand, two hundred eighty-nine".