349697220 has 24 divisors (see below), whose sum is σ = 979152384. Its totient is φ = 93252576.

The previous prime is 349697219. The next prime is 349697239. The reversal of 349697220 is 22796943.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2914084 + ... + 2914203.

It is an arithmetic number, because the mean of its divisors is an integer number (40798016).

Almost surely, 2^349697220 is an apocalyptic number.

349697220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

349697220 is an abundant number, since it is smaller than the sum of its proper divisors (629455164).

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

349697220 is a wasteful number, since it uses less digits than its factorization.

349697220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828299 (or 5828297 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 349697220 is about 18700.1930471319. The cubic root of 349697220 is about 704.5265973296.

The spelling of 349697220 in words is "three hundred forty-nine million, six hundred ninety-seven thousand, two hundred twenty".