4020135250 has 32 divisors (see below), whose sum is σ = 7529691312. Its totient is φ = 1607200000.

The previous prime is 4020135227. The next prime is 4020135257. The reversal of 4020135250 is 525310204.

It can be written as a sum of positive squares in 8 ways, for example, as 135978921 + 3884156329 = 11661^2 + 62323^2 .

It is a super-3 number, since 3×4020135250³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (4020135257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697380 + ... + 703120.

Almost surely, 2^4020135250 is an apocalyptic number.

4020135250 is a deficient number, since it is larger than the sum of its proper divisors (3509556062).

4020135250 is a wasteful number, since it uses less digits than its factorization.

4020135250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559 (or 8549 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 4020135250 is about 63404.5365096221. The cubic root of 4020135250 is about 1590.0601548909.

Adding to 4020135250 its reverse (525310204), we get a palindrome (4545445454).

The spelling of 4020135250 in words is "four billion, twenty million, one hundred thirty-five thousand, two hundred fifty".