345090534 has 16 divisors (see below), whose sum is σ = 691400880. Its totient is φ = 114826880.

The previous prime is 345090509. The next prime is 345090569. The reversal of 345090534 is 435090543.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 345090495 and 345090504.

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, 47127 + ... + 53954.

It is an arithmetic number, because the mean of its divisors is an integer number (43212555).

Almost surely, 2^345090534 is an apocalyptic number.

345090534 is an abundant number, since it is smaller than the sum of its proper divisors (346310346).

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

345090534 is a wasteful number, since it uses less digits than its factorization.

345090534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101655.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 345090534 is about 18576.6125544998. The cubic root of 345090534 is about 701.4192524886.

Subtracting 345090534 from its reverse (435090543), we obtain a palindrome (90000009).

The spelling of 345090534 in words is "three hundred forty-five million, ninety thousand, five hundred thirty-four".