345779520 has 56 divisors (see below), whose sum is σ = 1097853024. Its totient is φ = 92207616.

The previous prime is 345779519. The next prime is 345779531. The reversal of 345779520 is 25977543.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179134 + ... + 181053.

Almost surely, 2^345779520 is an apocalyptic number.

345779520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345779520 is an abundant number, since it is smaller than the sum of its proper divisors (752073504).

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

345779520 is a wasteful number, since it uses less digits than its factorization.

345779520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360207 (or 360197 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 345779520 is about 18595.1477541858. The cubic root of 345779520 is about 701.8857453196.

The spelling of 345779520 in words is "three hundred forty-five million, seven hundred seventy-nine thousand, five hundred twenty".