333402021 has 8 divisors (see below), whose sum is σ = 493928960. Its totient is φ = 222267996.

The previous prime is 333402019. The next prime is 333402029. The reversal of 333402021 is 120204333.

It is not a de Polignac number, because 333402021 - 2¹ = 333402019 is a prime.

It is a super-2 number, since 2×333402021² = 222313815213768882, 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 = 333401985 and 333402003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333402029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6174085 + ... + 6174138.

It is an arithmetic number, because the mean of its divisors is an integer number (61741120).

Almost surely, 2^333402021 is an apocalyptic number.

It is an amenable number.

333402021 is a deficient number, since it is larger than the sum of its proper divisors (160526939).

333402021 is a wasteful number, since it uses less digits than its factorization.

333402021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348232 (or 12348226 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 333402021 is about 18259.2995758326. The cubic root of 333402021 is about 693.4088964478.

Adding to 333402021 its reverse (120204333), we get a palindrome (453606354).

The spelling of 333402021 in words is "three hundred thirty-three million, four hundred two thousand, twenty-one".