345356538 has 8 divisors (see below), whose sum is σ = 690713088. Its totient is φ = 115118844.

The previous prime is 345356527. The next prime is 345356617. The reversal of 345356538 is 835653543.

It is a sphenic number, since it is the product of 3 distinct primes.

345356538 is an admirable number.

It is a super-2 number, since 2×345356538² = 238542276678690888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345356538.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28779706 + ... + 28779717.

It is an arithmetic number, because the mean of its divisors is an integer number (86339136).

Almost surely, 2^345356538 is an apocalyptic number.

345356538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345356538 is a wasteful number, since it uses less digits than its factorization.

345356538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57559428.

The product of its digits is 648000, while the sum is 42.

The square root of 345356538 is about 18583.7708229519. The cubic root of 345356538 is about 701.5994297549.

The spelling of 345356538 in words is "three hundred forty-five million, three hundred fifty-six thousand, five hundred thirty-eight".