349521336 has 48 divisors (see below), whose sum is σ = 950595360. Its totient is φ = 116017920.

The previous prime is 349521313. The next prime is 349521349. The reversal of 349521336 is 633125943.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 349521336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7281 + ... + 27423.

It is an arithmetic number, because the mean of its divisors is an integer number (19804070).

Almost surely, 2^349521336 is an apocalyptic number.

349521336 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

349521336 is an abundant number, since it is smaller than the sum of its proper divisors (601074024).

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

349521336 is a wasteful number, since it uses less digits than its factorization.

349521336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20396 (or 20389 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 349521336 is about 18695.4897234600. The cubic root of 349521336 is about 704.4084610968.

The spelling of 349521336 in words is "three hundred forty-nine million, five hundred twenty-one thousand, three hundred thirty-six".