345240355 has 16 divisors (see below), whose sum is σ = 436884480. Its totient is φ = 261181152.

The previous prime is 345240341. The next prime is 345240407. The reversal of 345240355 is 553042543.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 345240355 - 2⁵ = 345240323 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54672 + ... + 60658.

It is an arithmetic number, because the mean of its divisors is an integer number (27305280).

Almost surely, 2^345240355 is an apocalyptic number.

345240355 is a deficient number, since it is larger than the sum of its proper divisors (91644125).

345240355 is a wasteful number, since it uses less digits than its factorization.

345240355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 345240355 is about 18580.6446335965. The cubic root of 345240355 is about 701.5207448210.

Adding to 345240355 its reverse (553042543), we get a palindrome (898282898).

The spelling of 345240355 in words is "three hundred forty-five million, two hundred forty thousand, three hundred fifty-five".