1040000320 has 56 divisors (see below), whose sum is σ = 2561920200. Its totient is φ = 401651712.

The previous prime is 1040000309. The next prime is 1040000327. The reversal of 1040000320 is 230000401.

It can be written as a sum of positive squares in 4 ways, for example, as 91853056 + 948147264 = 9584^2 + 30792^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1040000297 and 1040000306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040000327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46755 + ... + 65314.

It is an arithmetic number, because the mean of its divisors is an integer number (45748575).

Almost surely, 2^1040000320 is an apocalyptic number.

1040000320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040000320 is an abundant number, since it is smaller than the sum of its proper divisors (1521919880).

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

1040000320 is a wasteful number, since it uses less digits than its factorization.

1040000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112115 (or 112105 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1040000320 is about 32249.0359545832. The cubic root of 1040000320 is about 1013.1595077340.

Adding to 1040000320 its reverse (230000401), we get a palindrome (1270000721).

The spelling of 1040000320 in words is "one billion, forty million, three hundred twenty", and thus it is an aban number.