345438615 has 16 divisors (see below), whose sum is σ = 555900768. Its totient is φ = 183167616.

The previous prime is 345438593. The next prime is 345438617. The reversal of 345438615 is 516834543.

It is not a de Polignac number, because 345438615 - 2¹⁸ = 345176471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345438617) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63964 + ... + 69153.

It is an arithmetic number, because the mean of its divisors is an integer number (34743798).

Almost surely, 2^345438615 is an apocalyptic number.

345438615 is a deficient number, since it is larger than the sum of its proper divisors (210462153).

345438615 is a wasteful number, since it uses less digits than its factorization.

345438615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133298.

The product of its digits is 172800, while the sum is 39.

The square root of 345438615 is about 18585.9789895502. The cubic root of 345438615 is about 701.6550057648.

The spelling of 345438615 in words is "three hundred forty-five million, four hundred thirty-eight thousand, six hundred fifteen".