4020906280 has 32 divisors (see below), whose sum is σ = 9070331400. Its totient is φ = 1604221696.

The previous prime is 4020906277. The next prime is 4020906287. The reversal of 4020906280 is 826090204.

4020906280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2896377124 + 1124529156 = 53818^2 + 33534^2 .

It is not an unprimeable number, because it can be changed into a prime (4020906287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113647 + ... + 144766.

Almost surely, 2^4020906280 is an apocalyptic number.

4020906280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4020906280 is an abundant number, since it is smaller than the sum of its proper divisors (5049425120).

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

4020906280 is a wasteful number, since it uses less digits than its factorization.

4020906280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258813 (or 258809 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 4020906280 is about 63410.6164612835. The cubic root of 4020906280 is about 1590.1618020276.

Adding to 4020906280 its reverse (826090204), we get a palindrome (4846996484).

The spelling of 4020906280 in words is "four billion, twenty million, nine hundred six thousand, two hundred eighty".