345277420 has 12 divisors (see below), whose sum is σ = 725082624. Its totient is φ = 138110960.

The previous prime is 345277409. The next prime is 345277421. The reversal of 345277420 is 24772543.

It is not an unprimeable number, because it can be changed into a prime (345277421) 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 3 ways as a sum of consecutive naturals, for example, 8631916 + ... + 8631955.

It is an arithmetic number, because the mean of its divisors is an integer number (60423552).

Almost surely, 2^345277420 is an apocalyptic number.

It is an amenable number.

345277420 is an abundant number, since it is smaller than the sum of its proper divisors (379805204).

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

345277420 is a wasteful number, since it uses less digits than its factorization.

345277420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17263880 (or 17263878 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 345277420 is about 18581.6420157100. The cubic root of 345277420 is about 701.5458490087.

The spelling of 345277420 in words is "three hundred forty-five million, two hundred seventy-seven thousand, four hundred twenty".