349287516 has 18 divisors (see below), whose sum is σ = 882921312. Its totient is φ = 116429160.

The previous prime is 349287481. The next prime is 349287529. The reversal of 349287516 is 615782943.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4851180 + ... + 4851251.

It is an arithmetic number, because the mean of its divisors is an integer number (49051184).

Almost surely, 2^349287516 is an apocalyptic number.

349287516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

349287516 is an abundant number, since it is smaller than the sum of its proper divisors (533633796).

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

349287516 is a wasteful number, since it uses less digits than its factorization.

349287516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9702441 (or 9702436 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 349287516 is about 18689.2352973577. The cubic root of 349287516 is about 704.2513495362.

The spelling of 349287516 in words is "three hundred forty-nine million, two hundred eighty-seven thousand, five hundred sixteen".