1025461240 has 32 divisors (see below), whose sum is σ = 2345117760. Its totient is φ = 403459200.

The previous prime is 1025461223. The next prime is 1025461243. The reversal of 1025461240 is 421645201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025461243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207696 + ... + 212575.

It is an arithmetic number, because the mean of its divisors is an integer number (73284930).

Almost surely, 2^1025461240 is an apocalyptic number.

1025461240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025461240 is an abundant number, since it is smaller than the sum of its proper divisors (1319656520).

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

1025461240 is a wasteful number, since it uses less digits than its factorization.

1025461240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420343 (or 420339 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1025461240 is about 32022.8237355796. The cubic root of 1025461240 is about 1008.4160513765.

The spelling of 1025461240 in words is "one billion, twenty-five million, four hundred sixty-one thousand, two hundred forty".