1025391360 has 288 divisors, whose sum is σ = 3847560192. Its totient is φ = 227819520.

The previous prime is 1025391343. The next prime is 1025391377. The reversal of 1025391360 is 631935201.

It is an interprime number because it is at equal distance from previous prime (1025391343) and next prime (1025391377).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 994045 + ... + 995075.

It is an arithmetic number, because the mean of its divisors is an integer number (13359584).

Almost surely, 2^1025391360 is an apocalyptic number.

1025391360 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 1025391360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923780096).

1025391360 is an abundant number, since it is smaller than the sum of its proper divisors (2822168832).

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

1025391360 is a wasteful number, since it uses less digits than its factorization.

1025391360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 1025391360 is about 32021.7326202065. The cubic root of 1025391360 is about 1008.3931447040.

The spelling of 1025391360 in words is "one billion, twenty-five million, three hundred ninety-one thousand, three hundred sixty".