1064050640 has 20 divisors (see below), whose sum is σ = 2473917924. Its totient is φ = 425620224.

The previous prime is 1064050639. The next prime is 1064050657. The reversal of 1064050640 is 460504601.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 630411664 + 433638976 = 25108^2 + 20824^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1064050640² = 2264407528968819200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6650237 + ... + 6650396.

Almost surely, 2^1064050640 is an apocalyptic number.

1064050640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064050640 is an abundant number, since it is smaller than the sum of its proper divisors (1409867284).

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

1064050640 is a wasteful number, since it uses less digits than its factorization.

1064050640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13300646 (or 13300640 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1064050640 is about 32619.7890857682. The cubic root of 1064050640 is about 1020.9099402772.

The spelling of 1064050640 in words is "one billion, sixty-four million, fifty thousand, six hundred forty".