1030304640 has 256 divisors, whose sum is σ = 3521203200. Its totient is φ = 255467520.

The previous prime is 1030304633. The next prime is 1030304641. The reversal of 1030304640 is 464030301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030304641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2225049 + ... + 2225511.

It is an arithmetic number, because the mean of its divisors is an integer number (13754700).

Almost surely, 2^1030304640 is an apocalyptic number.

1030304640 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 1030304640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1760601600).

1030304640 is an abundant number, since it is smaller than the sum of its proper divisors (2490898560).

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

1030304640 is a wasteful number, since it uses less digits than its factorization.

1030304640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1030304640 is about 32098.3588365511. The cubic root of 1030304640 is about 1010.0011894245.

Adding to 1030304640 its reverse (464030301), we get a palindrome (1494334941).

The spelling of 1030304640 in words is "one billion, thirty million, three hundred four thousand, six hundred forty".