347226660 has 144 divisors (see below), whose sum is σ = 1186278912. Its totient is φ = 81446400.

The previous prime is 347226643. The next prime is 347226667. The reversal of 347226660 is 66622743.

It is a happy number.

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 (347226667) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58552 + ... + 64208.

It is an arithmetic number, because the mean of its divisors is an integer number (8238048).

Almost surely, 2^347226660 is an apocalyptic number.

347226660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347226660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593139456).

347226660 is an abundant number, since it is smaller than the sum of its proper divisors (839052252).

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

347226660 is a wasteful number, since it uses less digits than its factorization.

347226660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714 (or 5709 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 347226660 is about 18634.0188901911. The cubic root of 347226660 is about 702.8635487788.

The spelling of 347226660 in words is "three hundred forty-seven million, two hundred twenty-six thousand, six hundred sixty".