345320415 has 40 divisors (see below), whose sum is σ = 675301968. Its totient is φ = 167425920.

The previous prime is 345320407. The next prime is 345320453. The reversal of 345320415 is 514023543.

345320415 is a `hidden beast` number, since 3 + 453 + 204 + 1 + 5 = 666.

It is not a de Polignac number, because 345320415 - 2³ = 345320407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 34302 + ... + 43211.

Almost surely, 2^345320415 is an apocalyptic number.

345320415 is a deficient number, since it is larger than the sum of its proper divisors (329981553).

345320415 is a wasteful number, since it uses less digits than its factorization.

345320415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77541 (or 77532 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 345320415 is about 18582.7989011343. The cubic root of 345320415 is about 701.5749673447.

Adding to 345320415 its reverse (514023543), we get a palindrome (859343958).

The spelling of 345320415 in words is "three hundred forty-five million, three hundred twenty thousand, four hundred fifteen".