345021324 has 48 divisors (see below), whose sum is σ = 865162368. Its totient is φ = 106622208.

The previous prime is 345021319. The next prime is 345021331. The reversal of 345021324 is 423120543.

It is a junction number, because it is equal to n+sod(n) for n = 345021294 and 345021303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047 + ... + 26289.

It is an arithmetic number, because the mean of its divisors is an integer number (18024216).

Almost surely, 2^345021324 is an apocalyptic number.

345021324 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345021324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432581184).

345021324 is an abundant number, since it is smaller than the sum of its proper divisors (520141044).

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

345021324 is a wasteful number, since it uses less digits than its factorization.

345021324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25334 (or 25332 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 345021324 is about 18574.7496349211. The cubic root of 345021324 is about 701.3723580581.

Adding to 345021324 its reverse (423120543), we get a palindrome (768141867).

The spelling of 345021324 in words is "three hundred forty-five million, twenty-one thousand, three hundred twenty-four".