1025052040 has 64 divisors (see below), whose sum is σ = 2412063360. Its totient is φ = 391311360.

The previous prime is 1025052019. The next prime is 1025052047. The reversal of 1025052040 is 402505201.

It is a junction number, because it is equal to n+sod(n) for n = 1025051999 and 1025052017.

It is not an unprimeable number, because it can be changed into a prime (1025052047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529875 + ... + 531805.

It is an arithmetic number, because the mean of its divisors is an integer number (37688490).

Almost surely, 2^1025052040 is an apocalyptic number.

1025052040 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 1025052040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206031680).

1025052040 is an abundant number, since it is smaller than the sum of its proper divisors (1387011320).

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

1025052040 is a wasteful number, since it uses less digits than its factorization.

1025052040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1025052040 is about 32016.4339051057. The cubic root of 1025052040 is about 1008.2819007681.

Adding to 1025052040 its reverse (402505201), we get a palindrome (1427557241).

The spelling of 1025052040 in words is "one billion, twenty-five million, fifty-two thousand, forty".