420202 has 4 divisors (see below), whose sum is σ = 630306. Its totient is φ = 210100.

The previous prime is 420193. The next prime is 420221. The reversal of 420202 is 202024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 408321 + 11881 = 639^2 + 109^2 .

420202 is a modest number, since divided by 202 gives 42 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105049 + ... + 105052.

2⁴²⁰²⁰² is an apocalyptic number.

420202 is a deficient number, since it is larger than the sum of its proper divisors (210104).

420202 is a wasteful number, since it uses less digits than its factorization.

420202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210103.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 420202 is about 648.2298974901. The cubic root of 420202 is about 74.9007279180.

Adding to 420202 its reverse (202024), we get a palindrome (622226).

It can be divided in two parts, 4 and 20202, that multiplied together give a palindrome (80808).

The spelling of 420202 in words is "four hundred twenty thousand, two hundred two", and thus it is an iban number.