1064594628 has 18 divisors (see below), whose sum is σ = 2691058734. Its totient is φ = 354864864.

The previous prime is 1064594627. The next prime is 1064594683. The reversal of 1064594628 is 8264954601.

1064594628 is a `hidden beast` number, since 10 + 6 + 4 + 5 + 9 + 4 + 628 = 666.

It can be written as a sum of positive squares in only one way, i.e., 734518404 + 330076224 = 27102^2 + 18168^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1064594628² = 2266723443932916768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1064594627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14786001 + ... + 14786072.

It is an arithmetic number, because the mean of its divisors is an integer number (149503263).

Almost surely, 2^1064594628 is an apocalyptic number.

1064594628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1064594628 is an abundant number, since it is smaller than the sum of its proper divisors (1626464106).

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

1064594628 is a wasteful number, since it uses less digits than its factorization.

1064594628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29572083 (or 29572078 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 1064594628 is about 32628.1263329662. The cubic root of 1064594628 is about 1021.0838881831.

The spelling of 1064594628 in words is "one billion, sixty-four million, five hundred ninety-four thousand, six hundred twenty-eight".