420355 has 16 divisors (see below), whose sum is σ = 564480. Its totient is φ = 298368.

The previous prime is 420353. The next prime is 420361. The reversal of 420355 is 553024.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 420355 - 2¹ = 420353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774 + ... + 1996.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

2⁴²⁰³⁵⁵ is an apocalyptic number.

420355 is a deficient number, since it is larger than the sum of its proper divisors (144125).

420355 is a wasteful number, since it uses less digits than its factorization.

420355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 420355 is about 648.3479004362. The cubic root of 420355 is about 74.9098175310.

Adding to 420355 its reverse (553024), we get a palindrome (973379).

The spelling of 420355 in words is "four hundred twenty thousand, three hundred fifty-five".