1325298240 has 448 divisors, whose sum is σ = 5661964800. Its totient is φ = 284884992.

The previous prime is 1325298217. The next prime is 1325298263. The reversal of 1325298240 is 428925231.

It is a happy number.

1325298240 is a `hidden beast` number, since 1 + 325 + 2 + 98 + 240 = 666.

It is an interprime number because it is at equal distance from previous prime (1325298217) and next prime (1325298263).

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1325298195 and 1325298204.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1027516 + ... + 1028804.

Almost surely, 2^1325298240 is an apocalyptic number.

1325298240 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 1325298240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2830982400).

1325298240 is an abundant number, since it is smaller than the sum of its proper divisors (4336666560).

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

1325298240 is a wasteful number, since it uses less digits than its factorization.

1325298240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1325298240 is about 36404.6458573628. The cubic root of 1325298240 is about 1098.4270189540.

The spelling of 1325298240 in words is "one billion, three hundred twenty-five million, two hundred ninety-eight thousand, two hundred forty".