1020240220 has 24 divisors (see below), whose sum is σ = 2200411584. Its totient is φ = 397066176.

The previous prime is 1020240209. The next prime is 1020240223. The reversal of 1020240220 is 220420201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020240220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020240223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688612 + ... + 690091.

It is an arithmetic number, because the mean of its divisors is an integer number (91683816).

Almost surely, 2^1020240220 is an apocalyptic number.

1020240220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020240220 is an abundant number, since it is smaller than the sum of its proper divisors (1180171364).

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

1020240220 is a wasteful number, since it uses less digits than its factorization.

1020240220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378749 (or 1378747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1020240220 is about 31941.1994139231. The cubic root of 1020240220 is about 1006.7017265297.

Adding to 1020240220 its reverse (220420201), we get a palindrome (1240660421).

The spelling of 1020240220 in words is "one billion, twenty million, two hundred forty thousand, two hundred twenty".