1030947840 has 264 divisors, whose sum is σ = 3849227928. Its totient is φ = 253624320.

The previous prime is 1030947823. The next prime is 1030947851. The reversal of 1030947840 is 487490301.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63489024 + 967458816 = 7968^2 + 31104^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1030947795 and 1030947804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598180 + ... + 599900.

Almost surely, 2^1030947840 is an apocalyptic number.

1030947840 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 1030947840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1924613964).

1030947840 is an abundant number, since it is smaller than the sum of its proper divisors (2818280088).

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

1030947840 is a wasteful number, since it uses less digits than its factorization.

1030947840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765 (or 1744 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1030947840 is about 32108.3764771749. The cubic root of 1030947840 is about 1010.2113206815.

The spelling of 1030947840 in words is "one billion, thirty million, nine hundred forty-seven thousand, eight hundred forty".