345520254 has 16 divisors (see below), whose sum is σ = 693910800. Its totient is φ = 114695040.

The previous prime is 345520249. The next prime is 345520261. The reversal of 345520254 is 452025543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118029 + ... + 120920.

It is an arithmetic number, because the mean of its divisors is an integer number (43369425).

Almost surely, 2^345520254 is an apocalyptic number.

345520254 is an abundant number, since it is smaller than the sum of its proper divisors (348390546).

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

345520254 is a wasteful number, since it uses less digits than its factorization.

345520254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239195.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 345520254 is about 18588.1751121513. The cubic root of 345520254 is about 701.7102764637.

Adding to 345520254 its reverse (452025543), we get a palindrome (797545797).

The spelling of 345520254 in words is "three hundred forty-five million, five hundred twenty thousand, two hundred fifty-four".