4245212840 has 128 divisors (see below), whose sum is σ = 10845964800. Its totient is φ = 1481867520.

The previous prime is 4245212827. The next prime is 4245212893. The reversal of 4245212840 is 482125424.

4245212840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4245212797 and 4245212806.

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, 1114379 + ... + 1118181.

It is an arithmetic number, because the mean of its divisors is an integer number (84734100).

Almost surely, 2^4245212840 is an apocalyptic number.

4245212840 is a gapful number since it is divisible by the number (40) 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 4245212840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5422982400).

4245212840 is an abundant number, since it is smaller than the sum of its proper divisors (6600751960).

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

4245212840 is a wasteful number, since it uses less digits than its factorization.

4245212840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927 (or 3923 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

The square root of 4245212840 is about 65155.2978659449. The cubic root of 4245212840 is about 1619.1974941067.

The spelling of 4245212840 in words is "four billion, two hundred forty-five million, two hundred twelve thousand, eight hundred forty".