345072522 has 16 divisors (see below), whose sum is σ = 691427232. Its totient is φ = 114810480.

The previous prime is 345072517. The next prime is 345072551. The reversal of 345072522 is 225270543.

It is a self number, because there is not a number n which added to its sum of digits gives 345072522.

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, 49908 + ... + 56399.

It is an arithmetic number, because the mean of its divisors is an integer number (43214202).

Almost surely, 2^345072522 is an apocalyptic number.

345072522 is an abundant number, since it is smaller than the sum of its proper divisors (346354710).

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

345072522 is a wasteful number, since it uses less digits than its factorization.

345072522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106853.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 345072522 is about 18576.1277450388. The cubic root of 345072522 is about 701.4070487506.

The spelling of 345072522 in words is "three hundred forty-five million, seventy-two thousand, five hundred twenty-two".