345240522 has 128 divisors (see below), whose sum is σ = 895795200. Its totient is φ = 97401600.

The previous prime is 345240517. The next prime is 345240547. The reversal of 345240522 is 225042543.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1807447 + ... + 1807637.

It is an arithmetic number, because the mean of its divisors is an integer number (6998400).

Almost surely, 2^345240522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345240522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447897600).

345240522 is an abundant number, since it is smaller than the sum of its proper divisors (550554678).

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

345240522 is a wasteful number, since it uses less digits than its factorization.

345240522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 345240522 is about 18580.6491275197. The cubic root of 345240522 is about 701.5208579345.

The spelling of 345240522 in words is "three hundred forty-five million, two hundred forty thousand, five hundred twenty-two".