1284764064 has 48 divisors (see below), whose sum is σ = 3391184160. Its totient is φ = 425882880.

The previous prime is 1284764057. The next prime is 1284764083. The reversal of 1284764064 is 4604674821.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19594 + ... + 54345.

It is an arithmetic number, because the mean of its divisors is an integer number (70649670).

Almost surely, 2^1284764064 is an apocalyptic number.

It is an amenable number.

1284764064 is an abundant number, since it is smaller than the sum of its proper divisors (2106420096).

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

1284764064 is a wasteful number, since it uses less digits than its factorization.

1284764064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74133 (or 74125 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 1284764064 is about 35843.6056222027. The cubic root of 1284764064 is about 1087.1124267197.

It can be divided in two parts, 128 and 4764064, that multiplied together give a cube (609800192 = 848³).

The spelling of 1284764064 in words is "one billion, two hundred eighty-four million, seven hundred sixty-four thousand, sixty-four".