1284561948 has 36 divisors (see below), whose sum is σ = 3027864840. Its totient is φ = 423830880.

The previous prime is 1284561917. The next prime is 1284561959. The reversal of 1284561948 is 8491654821.

It is a junction number, because it is equal to n+sod(n) for n = 1284561897 and 1284561906.

It is a congruent number.

It is an unprimeable number.

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, 1295733 + ... + 1296723.

Almost surely, 2^1284561948 is an apocalyptic number.

It is an amenable number.

1284561948 is an abundant number, since it is smaller than the sum of its proper divisors (1743302892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1284561948 is an equidigital number, since it uses as much as digits as its factorization.

1284561948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 1105 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 1284561948 is about 35840.7860962898. The cubic root of 1284561948 is about 1087.0554164238.

The spelling of 1284561948 in words is "one billion, two hundred eighty-four million, five hundred sixty-one thousand, nine hundred forty-eight".