345504040 has 64 divisors (see below), whose sum is σ = 890040960. Its totient is φ = 118245120.

The previous prime is 345504023. The next prime is 345504041. The reversal of 345504040 is 40405543.

It is a junction number, because it is equal to n+sod(n) for n = 345503996 and 345504014.

It is not an unprimeable number, because it can be changed into a prime (345504041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296499 + ... + 297661.

It is an arithmetic number, because the mean of its divisors is an integer number (13906890).

Almost surely, 2^345504040 is an apocalyptic number.

It is an amenable number.

345504040 is an abundant number, since it is smaller than the sum of its proper divisors (544536920).

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

345504040 is a wasteful number, since it uses less digits than its factorization.

345504040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 345504040 is about 18587.7389695466. The cubic root of 345504040 is about 701.6993000610.

Adding to 345504040 its reverse (40405543), we get a palindrome (385909583).

The spelling of 345504040 in words is "three hundred forty-five million, five hundred four thousand, forty".