347442880 has 56 divisors (see below), whose sum is σ = 829635120. Its totient is φ = 138593280.

The previous prime is 347442859. The next prime is 347442959. The reversal of 347442880 is 88244743.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133431 + ... + 136009.

Almost surely, 2^347442880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347442880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414817560).

347442880 is an abundant number, since it is smaller than the sum of its proper divisors (482192240).

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

347442880 is a wasteful number, since it uses less digits than its factorization.

347442880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017 (or 3007 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The square root of 347442880 is about 18639.8197416177. The cubic root of 347442880 is about 703.0094108722.

The spelling of 347442880 in words is "three hundred forty-seven million, four hundred forty-two thousand, eight hundred eighty".