345680346 has 32 divisors (see below), whose sum is σ = 798579648. Its totient is φ = 98589440.

The previous prime is 345680341. The next prime is 345680353. The reversal of 345680346 is 643086543.

It is a super-2 number, since 2×345680346² = 238989803221359432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345680341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152925 + ... + 155168.

It is an arithmetic number, because the mean of its divisors is an integer number (24955614).

Almost surely, 2^345680346 is an apocalyptic number.

345680346 is an abundant number, since it is smaller than the sum of its proper divisors (452899302).

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

345680346 is a wasteful number, since it uses less digits than its factorization.

345680346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308126.

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 345680346 is about 18592.4808995465. The cubic root of 345680346 is about 701.8186356261.

The spelling of 345680346 in words is "three hundred forty-five million, six hundred eighty thousand, three hundred forty-six".