349723080 has 192 divisors, whose sum is σ = 1312122240. Its totient is φ = 79128576.

The previous prime is 349723079. The next prime is 349723091. The reversal of 349723080 is 80327943.

349723080 is a `hidden beast` number, since 349 + 7 + 2 + 308 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 268992 + ... + 270288.

It is an arithmetic number, because the mean of its divisors is an integer number (6833970).

Almost surely, 2^349723080 is an apocalyptic number.

349723080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349723080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656061120).

349723080 is an abundant number, since it is smaller than the sum of its proper divisors (962399160).

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

349723080 is a wasteful number, since it uses less digits than its factorization.

349723080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1421 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 349723080 is about 18700.8844710618. The cubic root of 349723080 is about 704.5439634087.

The spelling of 349723080 in words is "three hundred forty-nine million, seven hundred twenty-three thousand, eighty".