345577216 has 36 divisors (see below), whose sum is σ = 691395264. Its totient is φ = 172390400.

The previous prime is 345577201. The next prime is 345577217. The reversal of 345577216 is 612775543.

It is a super-2 number, since 2×345577216² = 238847224436621312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345577217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132081 + ... + 134671.

It is an arithmetic number, because the mean of its divisors is an integer number (19205424).

Almost surely, 2^345577216 is an apocalyptic number.

It is an amenable number.

345577216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

345577216 is an equidigital number, since it uses as much as digits as its factorization.

345577216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128 (or 3114 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The square root of 345577216 is about 18589.7072596639. The cubic root of 345577216 is about 701.7488353460.

The spelling of 345577216 in words is "three hundred forty-five million, five hundred seventy-seven thousand, two hundred sixteen".