4220250540 has 192 divisors, whose sum is σ = 13277924352. Its totient is φ = 992665600.

The previous prime is 4220250509. The next prime is 4220250563. The reversal of 4220250540 is 450520224.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4220250540.

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, 7116484 + ... + 7117076.

It is an arithmetic number, because the mean of its divisors is an integer number (69155856).

Almost surely, 2^4220250540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4220250540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6638962176).

4220250540 is an abundant number, since it is smaller than the sum of its proper divisors (9057673812).

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

4220250540 is a wasteful number, since it uses less digits than its factorization.

4220250540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 4220250540 is about 64963.4554191816. The cubic root of 4220250540 is about 1616.0175690628.

Adding to 4220250540 its reverse (450520224), we get a palindrome (4670770764).

The spelling of 4220250540 in words is "four billion, two hundred twenty million, two hundred fifty thousand, five hundred forty".