1064978784 has 36 divisors (see below), whose sum is σ = 3028534236. Its totient is φ = 354992832.

The previous prime is 1064978773. The next prime is 1064978791. The reversal of 1064978784 is 4878794601.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1064978784² = 2268359620740237312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1064978784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1848634 + ... + 1849209.

It is an arithmetic number, because the mean of its divisors is an integer number (84125951).

Almost surely, 2^1064978784 is an apocalyptic number.

It is an amenable number.

1064978784 is an abundant number, since it is smaller than the sum of its proper divisors (1963555452).

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

1064978784 is a wasteful number, since it uses less digits than its factorization.

1064978784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697859 (or 3697848 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 1064978784 is about 32634.0126861531. The cubic root of 1064978784 is about 1021.2066918368.

The spelling of 1064978784 in words is "one billion, sixty-four million, nine hundred seventy-eight thousand, seven hundred eighty-four".