1284452320 has 24 divisors (see below), whose sum is σ = 3034518984. Its totient is φ = 513780864.

The previous prime is 1284452293. The next prime is 1284452329. The reversal of 1284452320 is 232544821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284452329) 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, 4013754 + ... + 4014073.

It is an arithmetic number, because the mean of its divisors is an integer number (126438291).

Almost surely, 2^1284452320 is an apocalyptic number.

1284452320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1284452320 is an abundant number, since it is smaller than the sum of its proper divisors (1750066664).

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

1284452320 is an equidigital number, since it uses as much as digits as its factorization.

1284452320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8027842 (or 8027834 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 1284452320 is about 35839.2566887205. The cubic root of 1284452320 is about 1087.0244914584.

The spelling of 1284452320 in words is "one billion, two hundred eighty-four million, four hundred fifty-two thousand, three hundred twenty".