1025450240 has 144 divisors (see below), whose sum is σ = 2598790656. Its totient is φ = 387072000.

The previous prime is 1025450213. The next prime is 1025450243. The reversal of 1025450240 is 420545201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1025450243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1705940 + ... + 1706540.

Almost surely, 2^1025450240 is an apocalyptic number.

1025450240 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 1025450240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299395328).

1025450240 is an abundant number, since it is smaller than the sum of its proper divisors (1573340416).

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

1025450240 is an equidigital number, since it uses as much as digits as its factorization.

1025450240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1025450240 is about 32022.6519826201. The cubic root of 1025450240 is about 1008.4124456442.

Adding to 1025450240 its reverse (420545201), we get a palindrome (1445995441).

The spelling of 1025450240 in words is "one billion, twenty-five million, four hundred fifty thousand, two hundred forty".