349402788 has 96 divisors (see below), whose sum is σ = 1071033600. Its totient is φ = 96380928.

The previous prime is 349402783. The next prime is 349402811. The reversal of 349402788 is 887204943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349402783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13956 + ... + 29892.

It is an arithmetic number, because the mean of its divisors is an integer number (11156600).

Almost surely, 2^349402788 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 349402788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535516800).

349402788 is an abundant number, since it is smaller than the sum of its proper divisors (721630812).

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

349402788 is a wasteful number, since it uses less digits than its factorization.

349402788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15986 (or 15978 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 349402788 is about 18692.3189572616. The cubic root of 349402788 is about 704.3288134487.

The spelling of 349402788 in words is "three hundred forty-nine million, four hundred two thousand, seven hundred eighty-eight".