1064655984 has 40 divisors (see below), whose sum is σ = 3143271040. Its totient is φ = 304187328.

The previous prime is 1064655983. The next prime is 1064656057. The reversal of 1064655984 is 4895564601.

It is a super-2 number, since 2×1064655984² = 2266984728534016512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064655983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1583974 + ... + 1584645.

It is an arithmetic number, because the mean of its divisors is an integer number (78581776).

Almost surely, 2^1064655984 is an apocalyptic number.

1064655984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1064655984 is an abundant number, since it is smaller than the sum of its proper divisors (2078615056).

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

1064655984 is a wasteful number, since it uses less digits than its factorization.

1064655984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168637 (or 3168631 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 1064655984 is about 32629.0665511596. The cubic root of 1064655984 is about 1021.1035039185.

The spelling of 1064655984 in words is "one billion, sixty-four million, six hundred fifty-five thousand, nine hundred eighty-four".