1245324240 has 80 divisors (see below), whose sum is σ = 4289457600. Its totient is φ = 332085888.

The previous prime is 1245324233. The next prime is 1245324251. The reversal of 1245324240 is 424235421.

1245324240 is a `hidden beast` number, since 124 + 532 + 4 + 2 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286110 + ... + 290429.

It is an arithmetic number, because the mean of its divisors is an integer number (53618220).

Almost surely, 2^1245324240 is an apocalyptic number.

1245324240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245324240 is an abundant number, since it is smaller than the sum of its proper divisors (3044133360).

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

1245324240 is a wasteful number, since it uses less digits than its factorization.

1245324240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576561 (or 576549 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1245324240 is about 35289.1518741950. The cubic root of 1245324240 is about 1075.8725175225.

Adding to 1245324240 its reverse (424235421), we get a palindrome (1669559661).

The spelling of 1245324240 in words is "one billion, two hundred forty-five million, three hundred twenty-four thousand, two hundred forty".