345401112 has 128 divisors (see below), whose sum is σ = 1020096000. Its totient is φ = 95413248.

The previous prime is 345401041. The next prime is 345401131. The reversal of 345401112 is 211104543.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 989514 + ... + 989862.

It is an arithmetic number, because the mean of its divisors is an integer number (7969500).

Almost surely, 2^345401112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345401112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510048000).

345401112 is an abundant number, since it is smaller than the sum of its proper divisors (674694888).

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

345401112 is a wasteful number, since it uses less digits than its factorization.

345401112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 345401112 is about 18584.9700564731. The cubic root of 345401112 is about 701.6296128114.

Adding to 345401112 its reverse (211104543), we get a palindrome (556505655).

The spelling of 345401112 in words is "three hundred forty-five million, four hundred one thousand, one hundred twelve".