421252333 has 8 divisors (see below), whose sum is σ = 447162552. Its totient is φ = 395467776.

The previous prime is 421252313. The next prime is 421252339. The reversal of 421252333 is 333252124.

It can be written as a sum of positive squares in 4 ways, for example, as 31505769 + 389746564 = 5613^2 + 19742^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421252333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421252298 and 421252307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421252339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24460 + ... + 37957.

It is an arithmetic number, because the mean of its divisors is an integer number (55895319).

Almost surely, 2^421252333 is an apocalyptic number.

It is an amenable number.

421252333 is a deficient number, since it is larger than the sum of its proper divisors (25910219).

421252333 is a wasteful number, since it uses less digits than its factorization.

421252333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62831.

The product of its digits is 4320, while the sum is 25.

The square root of 421252333 is about 20524.4325865540. The cubic root of 421252333 is about 749.6308304631.

The spelling of 421252333 in words is "four hundred twenty-one million, two hundred fifty-two thousand, three hundred thirty-three".