1064858780 has 24 divisors (see below), whose sum is σ = 2250453408. Its totient is φ = 423229248.

The previous prime is 1064858771. The next prime is 1064858789. The reversal of 1064858780 is 878584601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1064858771) and next prime (1064858789).

It is a super-2 number, since 2×1064858780² = 2267848442686176800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064858789) 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, 166424 + ... + 172703.

It is an arithmetic number, because the mean of its divisors is an integer number (93768892).

Almost surely, 2^1064858780 is an apocalyptic number.

1064858780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064858780 is an abundant number, since it is smaller than the sum of its proper divisors (1185594628).

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

1064858780 is a wasteful number, since it uses less digits than its factorization.

1064858780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339293 (or 339291 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 1064858780 is about 32632.1740005167. The cubic root of 1064858780 is about 1021.1683331725.

The spelling of 1064858780 in words is "one billion, sixty-four million, eight hundred fifty-eight thousand, seven hundred eighty".