333309940 has 12 divisors (see below), whose sum is σ = 699950916. Its totient is φ = 133323968.

The previous prime is 333309937. The next prime is 333309941. The reversal of 333309940 is 49903333.

It can be written as a sum of positive squares in 2 ways, for example, as 81072016 + 252237924 = 9004^2 + 15882^2 .

It is a super-2 number, since 2×333309940² = 222191032205607200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 333309896 and 333309905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333309941) 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, 8332729 + ... + 8332768.

It is an arithmetic number, because the mean of its divisors is an integer number (58329243).

Almost surely, 2^333309940 is an apocalyptic number.

It is an amenable number.

333309940 is an abundant number, since it is smaller than the sum of its proper divisors (366640976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

333309940 is a wasteful number, since it uses less digits than its factorization.

333309940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16665506 (or 16665504 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 34.

The square root of 333309940 is about 18256.7779194468. Note that the first 3 decimals coincide. The cubic root of 333309940 is about 693.3450539398.

The spelling of 333309940 in words is "three hundred thirty-three million, three hundred nine thousand, nine hundred forty".