1284083968 has 18 divisors (see below), whose sum is σ = 2563152494. Its totient is φ = 642041856.

The previous prime is 1284083959. The next prime is 1284083971. The reversal of 1284083968 is 8693804821.

It can be written as a sum of positive squares in only one way, i.e., 882802944 + 401281024 = 29712^2 + 20032^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507721 + ... + 2508232.

Almost surely, 2^1284083968 is an apocalyptic number.

It is an amenable number.

1284083968 is a deficient number, since it is larger than the sum of its proper divisors (1279068526).

1284083968 is an frugal number, since it uses more digits than its factorization.

1284083968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015969 (or 5015955 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 1284083968 is about 35834.1173743682. The cubic root of 1284083968 is about 1086.9205701421.

The spelling of 1284083968 in words is "one billion, two hundred eighty-four million, eighty-three thousand, nine hundred sixty-eight".