345115420 has 48 divisors (see below), whose sum is σ = 798668640. Its totient is φ = 124459776.

The previous prime is 345115349. The next prime is 345115429. The reversal of 345115420 is 24511543.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345115429) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4255 + ... + 26614.

It is an arithmetic number, because the mean of its divisors is an integer number (16638930).

Almost surely, 2^345115420 is an apocalyptic number.

It is an amenable number.

345115420 is an abundant number, since it is smaller than the sum of its proper divisors (453553220).

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

345115420 is a wasteful number, since it uses less digits than its factorization.

345115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30934 (or 30932 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 345115420 is about 18577.2823631445. The cubic root of 345115420 is about 701.4361128950.

Adding to 345115420 its reverse (24511543), we get a palindrome (369626963).

The spelling of 345115420 in words is "three hundred forty-five million, one hundred fifteen thousand, four hundred twenty".