345736644 has 96 divisors (see below), whose sum is σ = 923940864. Its totient is φ = 99601920.

The previous prime is 345736603. The next prime is 345736681. The reversal of 345736644 is 446637543.

It is a junction number, because it is equal to n+sod(n) for n = 345736596 and 345736605.

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, 798252 + ... + 798684.

It is an arithmetic number, because the mean of its divisors is an integer number (9624384).

Almost surely, 2^345736644 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 345736644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461970432).

345736644 is an abundant number, since it is smaller than the sum of its proper divisors (578204220).

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

345736644 is a wasteful number, since it uses less digits than its factorization.

345736644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 735 counting only the distinct ones).

The product of its digits is 725760, while the sum is 42.

The square root of 345736644 is about 18593.9948370435. The cubic root of 345736644 is about 701.8567332899.

The spelling of 345736644 in words is "three hundred forty-five million, seven hundred thirty-six thousand, six hundred forty-four".