333240421 has 8 divisors (see below), whose sum is σ = 355852800. Its totient is φ = 311369520.

The previous prime is 333240419. The next prime is 333240431. The reversal of 333240421 is 124042333.

It is a happy number.

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

It is not a de Polignac number, because 333240421 - 2¹ = 333240419 is a prime.

It is a super-2 number, since 2×333240421² = 222098356376514482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 333240392 and 333240401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333240431) 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, 184441 + ... + 186238.

It is an arithmetic number, because the mean of its divisors is an integer number (44481600).

Almost surely, 2^333240421 is an apocalyptic number.

333240421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

333240421 is a deficient number, since it is larger than the sum of its proper divisors (22612379).

333240421 is a wasteful number, since it uses less digits than its factorization.

333240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370739.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 333240421 is about 18254.8738971268. The cubic root of 333240421 is about 693.2968465503.

Adding to 333240421 its reverse (124042333), we get a palindrome (457282754).

The spelling of 333240421 in words is "three hundred thirty-three million, two hundred forty thousand, four hundred twenty-one".