1010563640 has 192 divisors, whose sum is σ = 2625955200. Its totient is φ = 348751872.

The previous prime is 1010563579. The next prime is 1010563669. The reversal of 1010563640 is 463650101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9444467 + ... + 9444573.

It is an arithmetic number, because the mean of its divisors is an integer number (13676850).

Almost surely, 2^1010563640 is an apocalyptic number.

1010563640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010563640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312977600).

1010563640 is an abundant number, since it is smaller than the sum of its proper divisors (1615391560).

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

1010563640 is a wasteful number, since it uses less digits than its factorization.

1010563640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1010563640 is about 31789.3636299942. The cubic root of 1010563640 is about 1003.5088866470.

The spelling of 1010563640 in words is "one billion, ten million, five hundred sixty-three thousand, six hundred forty".