349223380 has 48 divisors (see below), whose sum is σ = 801452736. Its totient is φ = 126766080.

The previous prime is 349223359. The next prime is 349223387. The reversal of 349223380 is 83322943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349223387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172132 + ... + 174148.

It is an arithmetic number, because the mean of its divisors is an integer number (16696932).

Almost surely, 2^349223380 is an apocalyptic number.

It is an amenable number.

349223380 is an abundant number, since it is smaller than the sum of its proper divisors (452229356).

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

349223380 is a wasteful number, since it uses less digits than its factorization.

349223380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824 (or 2822 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 349223380 is about 18687.5193645385. The cubic root of 349223380 is about 704.2082421367.

It can be divided in two parts, 349 and 223380, that added together give a square (223729 = 473²).

The spelling of 349223380 in words is "three hundred forty-nine million, two hundred twenty-three thousand, three hundred eighty".