1040250320 has 20 divisors (see below), whose sum is σ = 2418582180. Its totient is φ = 416100096.

The previous prime is 1040250317. The next prime is 1040250347. The reversal of 1040250320 is 230520401.

It can be written as a sum of positive squares in 2 ways, for example, as 325008784 + 715241536 = 18028^2 + 26744^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6501485 + ... + 6501644.

It is an arithmetic number, because the mean of its divisors is an integer number (120929109).

Almost surely, 2^1040250320 is an apocalyptic number.

1040250320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040250320 is an abundant number, since it is smaller than the sum of its proper divisors (1378331860).

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

1040250320 is a wasteful number, since it uses less digits than its factorization.

1040250320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13003142 (or 13003136 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1040250320 is about 32252.9118065331. The cubic root of 1040250320 is about 1013.2406838577.

Adding to 1040250320 its reverse (230520401), we get a palindrome (1270770721).

The spelling of 1040250320 in words is "one billion, forty million, two hundred fifty thousand, three hundred twenty".