345742245 has 24 divisors (see below), whose sum is σ = 615486456. Its totient is φ = 179411328.

The previous prime is 345742219. The next prime is 345742247. The reversal of 345742245 is 542247543.

345742245 is a `hidden beast` number, since 345 + 74 + 2 + 245 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 118396161 + 227346084 = 10881^2 + 15078^2 .

It is not a de Polignac number, because 345742245 - 2⁶ = 345742181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345742247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102162 + ... + 105491.

It is an arithmetic number, because the mean of its divisors is an integer number (25645269).

Almost surely, 2^345742245 is an apocalyptic number.

It is an amenable number.

345742245 is a deficient number, since it is larger than the sum of its proper divisors (269744211).

345742245 is a wasteful number, since it uses less digits than its factorization.

345742245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207701 (or 207698 counting only the distinct ones).

The product of its digits is 134400, while the sum is 36.

The square root of 345742245 is about 18594.1454495763. The cubic root of 345742245 is about 701.8605233407.

Adding to 345742245 its reverse (542247543), we get a palindrome (887989788).

The spelling of 345742245 in words is "three hundred forty-five million, seven hundred forty-two thousand, two hundred forty-five".