402203025 has 81 divisors (see below), whose sum is σ = 842415483. Its totient is φ = 182901600.

The previous prime is 402203003. The next prime is 402203041. The reversal of 402203025 is 520302204.

The square root of 402203025 is 20055.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 144793089 + 257409936 = 12033^2 + 16044^2 .

It is not a de Polignac number, because 402203025 - 2⁵ = 402202993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402202989 and 402203007.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2105680 + ... + 2105870.

Almost surely, 2^402203025 is an apocalyptic number.

402203025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

402203025 is the 20055-th square number.

402203025 is the 10028-th centered octagonal number.

It is an amenable number.

402203025 is an abundant number, since it is smaller than the sum of its proper divisors (440212458).

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

402203025 is a wasteful number, since it uses less digits than its factorization.

402203025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The cubic root of 402203025 is about 738.1564929111.

Adding to 402203025 its reverse (520302204), we get a palindrome (922505229).

The spelling of 402203025 in words is "four hundred two million, two hundred three thousand, twenty-five".