1245030240 has 96 divisors (see below), whose sum is σ = 3928248576. Its totient is φ = 331466240.

The previous prime is 1245030239. The next prime is 1245030263. The reversal of 1245030240 is 420305421.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354895 + ... + 358385.

It is an arithmetic number, because the mean of its divisors is an integer number (40919256).

Almost surely, 2^1245030240 is an apocalyptic number.

1245030240 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 1245030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964124288).

1245030240 is an abundant number, since it is smaller than the sum of its proper divisors (2683218336).

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

1245030240 is a wasteful number, since it uses less digits than its factorization.

1245030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252 (or 4244 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1245030240 is about 35284.9860422248. The cubic root of 1245030240 is about 1075.7878457546.

Adding to 1245030240 its reverse (420305421), we get a palindrome (1665335661).

The spelling of 1245030240 in words is "one billion, two hundred forty-five million, thirty thousand, two hundred forty".