345355540 has 24 divisors (see below), whose sum is σ = 726374880. Its totient is φ = 137927328.

The previous prime is 345355477. The next prime is 345355547. The reversal of 345355540 is 45553543.

It is a junction number, because it is equal to n+sod(n) for n = 345355496 and 345355505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345355547) 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 7 ways as a sum of consecutive naturals, for example, 79 + ... + 26281.

It is an arithmetic number, because the mean of its divisors is an integer number (30265620).

Almost surely, 2^345355540 is an apocalyptic number.

It is an amenable number.

345355540 is an abundant number, since it is smaller than the sum of its proper divisors (381019340).

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

345355540 is a wasteful number, since it uses less digits than its factorization.

345355540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26871 (or 26869 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 34.

The square root of 345355540 is about 18583.7439715467. The cubic root of 345355540 is about 701.5987539346.

The spelling of 345355540 in words is "three hundred forty-five million, three hundred fifty-five thousand, five hundred forty".