421833373 has 8 divisors (see below), whose sum is σ = 454586328. Its totient is φ = 389123904.

The previous prime is 421833353. The next prime is 421833403. The reversal of 421833373 is 373338124.

It can be written as a sum of positive squares in 4 ways, for example, as 4571044 + 417262329 = 2138^2 + 20427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421833373 - 2¹³ = 421825181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421833353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10911 + ... + 31027.

It is an arithmetic number, because the mean of its divisors is an integer number (56823291).

Almost surely, 2^421833373 is an apocalyptic number.

It is an amenable number.

421833373 is a deficient number, since it is larger than the sum of its proper divisors (32752955).

421833373 is a wasteful number, since it uses less digits than its factorization.

421833373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21743.

The product of its digits is 36288, while the sum is 34.

The square root of 421833373 is about 20538.5825460279. The cubic root of 421833373 is about 749.9753313368.

The spelling of 421833373 in words is "four hundred twenty-one million, eight hundred thirty-three thousand, three hundred seventy-three".