349599516 has 72 divisors (see below), whose sum is σ = 951720336. Its totient is φ = 99590400.

The previous prime is 349599511. The next prime is 349599521. The reversal of 349599516 is 615995943.

It is an interprime number because it is at equal distance from previous prime (349599511) and next prime (349599521).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349599511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268066 + ... + 269366.

It is an arithmetic number, because the mean of its divisors is an integer number (13218338).

Almost surely, 2^349599516 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 349599516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475860168).

349599516 is an abundant number, since it is smaller than the sum of its proper divisors (602120820).

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

349599516 is a wasteful number, since it uses less digits than its factorization.

349599516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779 (or 1770 counting only the distinct ones).

The product of its digits is 1312200, while the sum is 51.

The square root of 349599516 is about 18697.5804851858. The cubic root of 349599516 is about 704.4609772499.

The spelling of 349599516 in words is "three hundred forty-nine million, five hundred ninety-nine thousand, five hundred sixteen".