1284403473 has 12 divisors (see below), whose sum is σ = 1923962768. Its totient is φ = 856268820.

The previous prime is 1284403469. The next prime is 1284403487. The reversal of 1284403473 is 3743044821.

It is not a de Polignac number, because 1284403473 - 2² = 1284403469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284403073) 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 11 ways as a sum of consecutive naturals, for example, 2642563 + ... + 2643048.

Almost surely, 2^1284403473 is an apocalyptic number.

It is an amenable number.

1284403473 is a deficient number, since it is larger than the sum of its proper divisors (639559295).

1284403473 is an frugal number, since it uses more digits than its factorization.

1284403473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285626 (or 5285614 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 1284403473 is about 35838.5752088444. The cubic root of 1284403473 is about 1087.0107116402.

The spelling of 1284403473 in words is "one billion, two hundred eighty-four million, four hundred three thousand, four hundred seventy-three".