1025304040 has 64 divisors (see below), whose sum is σ = 2424533760. Its totient is φ = 389733120.

The previous prime is 1025304029. The next prime is 1025304041. The reversal of 1025304040 is 404035201.

It is a junction number, because it is equal to n+sod(n) for n = 1025303999 and 1025304017.

It is not an unprimeable number, because it can be changed into a prime (1025304041) 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 15 ways as a sum of consecutive naturals, for example, 55585 + ... + 71695.

It is an arithmetic number, because the mean of its divisors is an integer number (37883340).

Almost surely, 2^1025304040 is an apocalyptic number.

1025304040 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 1025304040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1212266880).

1025304040 is an abundant number, since it is smaller than the sum of its proper divisors (1399229720).

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

1025304040 is a wasteful number, since it uses less digits than its factorization.

1025304040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16202 (or 16198 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1025304040 is about 32020.3691421570. The cubic root of 1025304040 is about 1008.3645197345.

Adding to 1025304040 its reverse (404035201), we get a palindrome (1429339241).

The spelling of 1025304040 in words is "one billion, twenty-five million, three hundred four thousand, forty".