402203020 has 48 divisors (see below), whose sum is σ = 891475200. Its totient is φ = 152003520.

The previous prime is 402203003. The next prime is 402203041. The reversal of 402203020 is 20302204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165615 + ... + 168025.

It is an arithmetic number, because the mean of its divisors is an integer number (18572400).

Almost surely, 2^402203020 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 402203020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445737600).

402203020 is an abundant number, since it is smaller than the sum of its proper divisors (489272180).

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

402203020 is a wasteful number, since it uses less digits than its factorization.

402203020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 402203020 is about 20054.9998753428. Note that the first 3 decimals coincide. The cubic root of 402203020 is about 738.1564898523.

Adding to 402203020 its reverse (20302204), we get a palindrome (422505224).

The spelling of 402203020 in words is "four hundred two million, two hundred three thousand, twenty".