345845440 has 28 divisors (see below), whose sum is σ = 823545216. Its totient is φ = 138338048.

The previous prime is 345845407. The next prime is 345845447. The reversal of 345845440 is 44548543.

It is a self number, because there is not a number n which added to its sum of digits gives 345845440.

It is not an unprimeable number, because it can be changed into a prime (345845447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540064 + ... + 540703.

Almost surely, 2^345845440 is an apocalyptic number.

It is an amenable number.

345845440 is an abundant number, since it is smaller than the sum of its proper divisors (477699776).

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

345845440 is a wasteful number, since it uses less digits than its factorization.

345845440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080784 (or 1080774 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

The square root of 345845440 is about 18596.9201751258. The cubic root of 345845440 is about 701.9303453858.

The spelling of 345845440 in words is "three hundred forty-five million, eight hundred forty-five thousand, four hundred forty".