349712622 has 48 divisors (see below), whose sum is σ = 872606592. Its totient is φ = 99150480.

The previous prime is 349712621. The next prime is 349712681. The reversal of 349712622 is 226217943.

It is a super-2 number, since 2×349712622² = 244597835972229768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349712621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5913 + ... + 27099.

It is an arithmetic number, because the mean of its divisors is an integer number (18179304).

Almost surely, 2^349712622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349712622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436303296).

349712622 is an abundant number, since it is smaller than the sum of its proper divisors (522893970).

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

349712622 is a wasteful number, since it uses less digits than its factorization.

349712622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21333 (or 21330 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 349712622 is about 18700.6048565280. The cubic root of 349712622 is about 704.5369405244.

The spelling of 349712622 in words is "three hundred forty-nine million, seven hundred twelve thousand, six hundred twenty-two".