1064463620 has 36 divisors (see below), whose sum is σ = 2457069132. Its totient is φ = 387076800.

The previous prime is 1064463613. The next prime is 1064463623. The reversal of 1064463620 is 263644601.

It can be written as a sum of positive squares in 2 ways, for example, as 385965316 + 678498304 = 19646^2 + 26048^2 .

It is a super-2 number, since 2×1064463620² = 2266165596607008800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1064463623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217511 + ... + 222350.

Almost surely, 2^1064463620 is an apocalyptic number.

1064463620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064463620 is an abundant number, since it is smaller than the sum of its proper divisors (1392605512).

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

1064463620 is a wasteful number, since it uses less digits than its factorization.

1064463620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439892 (or 439879 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 1064463620 is about 32626.1186781388. The cubic root of 1064463620 is about 1021.0420019283.

The spelling of 1064463620 in words is "one billion, sixty-four million, four hundred sixty-three thousand, six hundred twenty".