345804915 has 16 divisors (see below), whose sum is σ = 553975200. Its totient is φ = 184200192.

The previous prime is 345804863. The next prime is 345804919. The reversal of 345804915 is 519408543.

It is not a de Polignac number, because 345804915 - 2¹⁹ = 345280627 is a prime.

It is a super-3 number, since 3×345804915³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (345804919) 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 15 ways as a sum of consecutive naturals, for example, 1470 + ... + 26339.

It is an arithmetic number, because the mean of its divisors is an integer number (34623450).

Almost surely, 2^345804915 is an apocalyptic number.

345804915 is a deficient number, since it is larger than the sum of its proper divisors (208170285).

345804915 is a wasteful number, since it uses less digits than its factorization.

345804915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28646.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 345804915 is about 18595.8305810738. The cubic root of 345804915 is about 701.9029277062.

The spelling of 345804915 in words is "three hundred forty-five million, eight hundred four thousand, nine hundred fifteen".