345400215 has 16 divisors (see below), whose sum is σ = 554155008. Its totient is φ = 183708576.

The previous prime is 345400201. The next prime is 345400229. The reversal of 345400215 is 512004543.

It is an interprime number because it is at equal distance from previous prime (345400201) and next prime (345400229).

It is not a de Polignac number, because 345400215 - 2⁴ = 345400199 is a prime.

It is a congruent number.

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, 25867 + ... + 36876.

It is an arithmetic number, because the mean of its divisors is an integer number (34634688).

Almost surely, 2^345400215 is an apocalyptic number.

345400215 is a deficient number, since it is larger than the sum of its proper divisors (208754793).

345400215 is a wasteful number, since it uses less digits than its factorization.

345400215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63118.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 345400215 is about 18584.9459240537. The cubic root of 345400215 is about 701.6290054380.

Adding to 345400215 its reverse (512004543), we get a palindrome (857404758).

The spelling of 345400215 in words is "three hundred forty-five million, four hundred thousand, two hundred fifteen".