420250 has 24 divisors (see below), whose sum is σ = 806364. Its totient is φ = 164000.

The previous prime is 420241. The next prime is 420253. The reversal of 420250 is 52024.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 59049 + 361201 = 243^2 + 601^2 .

It is a super-2 number, since 2×420250² = 353220125000, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 420250.

It is not an unprimeable number, because it can be changed into a prime (420253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10230 + ... + 10270.

2⁴²⁰²⁵⁰ is an apocalyptic number.

420250 is a deficient number, since it is larger than the sum of its proper divisors (386114).

420250 is an equidigital number, since it uses as much as digits as its factorization.

420250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 420250 is about 648.2669203345. The cubic root of 420250 is about 74.9035797988.

Adding to 420250 its reverse (52024), we get a palindrome (472274).

The spelling of 420250 in words is "four hundred twenty thousand, two hundred fifty".