1030523640 has 32 divisors (see below), whose sum is σ = 3091571280. Its totient is φ = 274806272.

The previous prime is 1030523633. The next prime is 1030523647. The reversal of 1030523640 is 463250301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1030523633) and next prime (1030523647).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1030523640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030523647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4293729 + ... + 4293968.

Almost surely, 2^1030523640 is an apocalyptic number.

1030523640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030523640 is an abundant number, since it is smaller than the sum of its proper divisors (2061047640).

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

1030523640 is a wasteful number, since it uses less digits than its factorization.

1030523640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8587711 (or 8587707 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1030523640 is about 32101.7700446564. The cubic root of 1030523640 is about 1010.0727457978.

Adding to 1030523640 its reverse (463250301), we get a palindrome (1493773941).

The spelling of 1030523640 in words is "one billion, thirty million, five hundred twenty-three thousand, six hundred forty".