334345646440 has 32 divisors (see below), whose sum is σ = 810145221480. Its totient is φ = 123450700032.

The previous prime is 334345646387. The next prime is 334345646449. The reversal of 334345646440 is 44646543433.

It can be written as a sum of positive squares in 4 ways, for example, as 275832939204 + 58512707236 = 525198^2 + 241894^2 .

It is a super-2 number, since 2×334345646440² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (334345646449) 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, 321485679 + ... + 321486718.

Almost surely, 2^334345646440 is an apocalyptic number.

It is an amenable number.

334345646440 is an abundant number, since it is smaller than the sum of its proper divisors (475799575040).

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

334345646440 is a wasteful number, since it uses less digits than its factorization.

334345646440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642972421 (or 642972417 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 46.

The spelling of 334345646440 in words is "three hundred thirty-four billion, three hundred forty-five million, six hundred forty-six thousand, four hundred forty".