420373 has 4 divisors (see below), whose sum is σ = 430668. Its totient is φ = 410080.

The previous prime is 420367. The next prime is 420383. The reversal of 420373 is 373024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33489 + 386884 = 183^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 420373 - 2⁵ = 420341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5086 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (107667).

2⁴²⁰³⁷³ is an apocalyptic number.

It is an amenable number.

420373 is a deficient number, since it is larger than the sum of its proper divisors (10295).

420373 is a wasteful number, since it uses less digits than its factorization.

420373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 420373 is about 648.3617817238. The cubic root of 420373 is about 74.9108867522.

Adding to 420373 its reverse (373024), we get a palindrome (793397).

The spelling of 420373 in words is "four hundred twenty thousand, three hundred seventy-three", and thus it is an iban number.