349742412 has 72 divisors (see below), whose sum is σ = 908596416. Its totient is φ = 113392224.

The previous prime is 349742357. The next prime is 349742413. The reversal of 349742412 is 214247943.

349742412 is a `hidden beast` number, since 349 + 74 + 241 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (349742413) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 199323 + ... + 201069.

Almost surely, 2^349742412 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 349742412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454298208).

349742412 is an abundant number, since it is smaller than the sum of its proper divisors (558854004).

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

349742412 is a wasteful number, since it uses less digits than its factorization.

349742412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907 (or 1902 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 349742412 is about 18701.4013378677. The cubic root of 349742412 is about 704.5569451017.

The spelling of 349742412 in words is "three hundred forty-nine million, seven hundred forty-two thousand, four hundred twelve".