1002342220 has 108 divisors (see below), whose sum is σ = 2396259936. Its totient is φ = 351912000.

The previous prime is 1002342203. The next prime is 1002342223. The reversal of 1002342220 is 222432001.

It is a junction number, because it is equal to n+sod(n) for n = 1002342194 and 1002342203.

It is not an unprimeable number, because it can be changed into a prime (1002342223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2325405 + ... + 2325835.

It is an arithmetic number, because the mean of its divisors is an integer number (22187592).

Almost surely, 2^1002342220 is an apocalyptic number.

1002342220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002342220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198129968).

1002342220 is an abundant number, since it is smaller than the sum of its proper divisors (1393917716).

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

1002342220 is a wasteful number, since it uses less digits than its factorization.

1002342220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 480 counting only the distinct ones).

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

The square root of 1002342220 is about 31659.7886916511. The cubic root of 1002342220 is about 1000.7801312370.

Adding to 1002342220 its reverse (222432001), we get a palindrome (1224774221).

The spelling of 1002342220 in words is "one billion, two million, three hundred forty-two thousand, two hundred twenty".