1284500052 has 48 divisors (see below), whose sum is σ = 3632932800. Its totient is φ = 389242080.

The previous prime is 1284500051. The next prime is 1284500069. The reversal of 1284500052 is 2500054821.

It is a happy number.

1284500052 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1284499989 and 1284500025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284500051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539427 + ... + 541802.

It is an arithmetic number, because the mean of its divisors is an integer number (75686100).

Almost surely, 2^1284500052 is an apocalyptic number.

1284500052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1284500052 is an abundant number, since it is smaller than the sum of its proper divisors (2348432748).

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

1284500052 is a wasteful number, since it uses less digits than its factorization.

1284500052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081253 (or 1081245 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1284500052 is about 35839.9226003629. The cubic root of 1284500052 is about 1087.0379563958.

Adding to 1284500052 its reverse (2500054821), we get a palindrome (3784554873).

The spelling of 1284500052 in words is "one billion, two hundred eighty-four million, five hundred thousand, fifty-two".