345031016 has 48 divisors (see below), whose sum is σ = 713603520. Its totient is φ = 156279200.

The previous prime is 345030991. The next prime is 345031021. The reversal of 345031016 is 610130543.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 345030982 and 345031000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416795 + ... + 417621.

It is an arithmetic number, because the mean of its divisors is an integer number (14866740).

Almost surely, 2^345031016 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 345031016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356801760).

345031016 is an abundant number, since it is smaller than the sum of its proper divisors (368572504).

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

345031016 is a wasteful number, since it uses less digits than its factorization.

345031016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 345031016 is about 18575.0105248961. The cubic root of 345031016 is about 701.3789254176.

Adding to 345031016 its reverse (610130543), we get a palindrome (955161559).

The spelling of 345031016 in words is "three hundred forty-five million, thirty-one thousand, sixteen".