1245242824 has 64 divisors (see below), whose sum is σ = 2833948800. Its totient is φ = 501064704.

The previous prime is 1245242797. The next prime is 1245242827. The reversal of 1245242824 is 4282425421.

It is a self number, because there is not a number n which added to its sum of digits gives 1245242824.

It is not an unprimeable number, because it can be changed into a prime (1245242827) 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, 115054 + ... + 125410.

It is an arithmetic number, because the mean of its divisors is an integer number (44280450).

Almost surely, 2^1245242824 is an apocalyptic number.

1245242824 is a gapful number since it is divisible by the number (14) 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 1245242824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416974400).

1245242824 is an abundant number, since it is smaller than the sum of its proper divisors (1588705976).

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

1245242824 is a wasteful number, since it uses less digits than its factorization.

1245242824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10502 (or 10498 counting only the distinct ones).

The product of its digits is 40960, while the sum is 34.

The square root of 1245242824 is about 35287.9982997052. The cubic root of 1245242824 is about 1075.8490711131.

The spelling of 1245242824 in words is "one billion, two hundred forty-five million, two hundred forty-two thousand, eight hundred twenty-four".