1284434248 has 16 divisors (see below), whose sum is σ = 2449134000. Its totient is φ = 631331856.

The previous prime is 1284434227. The next prime is 1284434293. The reversal of 1284434248 is 8424344821.

It is a self number, because there is not a number n which added to its sum of digits gives 1284434248.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1360158 + ... + 1361101.

It is an arithmetic number, because the mean of its divisors is an integer number (153070875).

Almost surely, 2^1284434248 is an apocalyptic number.

It is an amenable number.

1284434248 is a deficient number, since it is larger than the sum of its proper divisors (1164699752).

1284434248 is a wasteful number, since it uses less digits than its factorization.

1284434248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721324 (or 2721320 counting only the distinct ones).

The product of its digits is 196608, while the sum is 40.

The square root of 1284434248 is about 35839.0045620690. The cubic root of 1284434248 is about 1087.0193933585.

The spelling of 1284434248 in words is "one billion, two hundred eighty-four million, four hundred thirty-four thousand, two hundred forty-eight".