345047841 has 18 divisors (see below), whose sum is σ = 511087122. Its totient is φ = 224189280.

The previous prime is 345047839. The next prime is 345047851. The reversal of 345047841 is 148740543.

It can be written as a sum of positive squares in only one way, i.e., 210395025 + 134652816 = 14505^2 + 11604^2 .

It is not a de Polignac number, because 345047841 - 2¹ = 345047839 is a prime.

It is a super-2 number, since 2×345047841² = 238116025157522562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345047796 and 345047805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345047831) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 356340 + ... + 357306.

It is an arithmetic number, because the mean of its divisors is an integer number (28393729).

Almost surely, 2^345047841 is an apocalyptic number.

It is an amenable number.

345047841 is a deficient number, since it is larger than the sum of its proper divisors (166039281).

345047841 is an frugal number, since it uses more digits than its factorization.

345047841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 345047841 is about 18575.4634127927. The cubic root of 345047841 is about 701.3903258503.

The spelling of 345047841 in words is "three hundred forty-five million, forty-seven thousand, eight hundred forty-one".