345674660 has 24 divisors (see below), whose sum is σ = 741363840. Its totient is φ = 135327584.

The previous prime is 345674599. The next prime is 345674663. The reversal of 345674660 is 66476543.

345674660 = 318² + 319² + ... + 1022².

It is a super-2 number, since 2×345674660² = 238981941132231200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345674663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182930 + ... + 184809.

It is an arithmetic number, because the mean of its divisors is an integer number (30890160).

Almost surely, 2^345674660 is an apocalyptic number.

It is an amenable number.

345674660 is an abundant number, since it is smaller than the sum of its proper divisors (395689180).

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

345674660 is a wasteful number, since it uses less digits than its factorization.

345674660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367795 (or 367793 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 41.

The square root of 345674660 is about 18592.3279876405. The cubic root of 345674660 is about 701.8147875984.

The spelling of 345674660 in words is "three hundred forty-five million, six hundred seventy-four thousand, six hundred sixty".