40260220 has 96 divisors (see below), whose sum is σ = 113573376. Its totient is φ = 11577600.

The previous prime is 40260203. The next prime is 40260223. The reversal of 40260220 is 2206204.

40260220 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 = 40260194 and 40260203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40260223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19015 + ... + 21025.

It is an arithmetic number, because the mean of its divisors is an integer number (1183056).

Almost surely, 2^40260220 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 40260220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56786688).

40260220 is an abundant number, since it is smaller than the sum of its proper divisors (73313156).

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

40260220 is a wasteful number, since it uses less digits than its factorization.

40260220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40260220 is about 6345.0941679379. The cubic root of 40260220 is about 342.7352034951.

Adding to 40260220 its reverse (2206204), we get a palindrome (42466424).

The spelling of 40260220 in words is "forty million, two hundred sixty thousand, two hundred twenty".