345322040 has 64 divisors (see below), whose sum is σ = 889574400. Its totient is φ = 118182528.

The previous prime is 345322007. The next prime is 345322067. The reversal of 345322040 is 40223543.

It is a super-2 number, since 2×345322040² = 238494622619523200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345321997 and 345322015.

It is a congruent number.

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, 290327 + ... + 291513.

It is an arithmetic number, because the mean of its divisors is an integer number (13899600).

Almost surely, 2^345322040 is an apocalyptic number.

It is an amenable number.

345322040 is an abundant number, since it is smaller than the sum of its proper divisors (544252360).

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

345322040 is a wasteful number, since it uses less digits than its factorization.

345322040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 345322040 is about 18582.8426243134. The cubic root of 345322040 is about 701.5760678275.

Adding to 345322040 its reverse (40223543), we get a palindrome (385545583).

The spelling of 345322040 in words is "three hundred forty-five million, three hundred twenty-two thousand, forty".