345388538 has 16 divisors (see below), whose sum is σ = 565548480. Its totient is φ = 156892800.

The previous prime is 345388531. The next prime is 345388559. The reversal of 345388538 is 835883543.

It is a junction number, because it is equal to n+sod(n) for n = 345388492 and 345388501.

It is not an unprimeable number, because it can be changed into a prime (345388531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37403 + ... + 45713.

It is an arithmetic number, because the mean of its divisors is an integer number (35346780).

Almost surely, 2^345388538 is an apocalyptic number.

345388538 is a deficient number, since it is larger than the sum of its proper divisors (220159942).

345388538 is a wasteful number, since it uses less digits than its factorization.

345388538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10213.

The product of its digits is 1382400, while the sum is 47.

The square root of 345388538 is about 18584.6317692872. The cubic root of 345388538 is about 701.6210986544.

It can be divided in two parts, 345 and 388538, that added together give a palindrome (388883).

The spelling of 345388538 in words is "three hundred forty-five million, three hundred eighty-eight thousand, five hundred thirty-eight".