347780412 has 144 divisors (see below), whose sum is σ = 1069169920. Its totient is φ = 95764032.

The previous prime is 347780399. The next prime is 347780423. The reversal of 347780412 is 214087743.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 635523 + ... + 636069.

Almost surely, 2^347780412 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 347780412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534584960).

347780412 is an abundant number, since it is smaller than the sum of its proper divisors (721389508).

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

347780412 is a wasteful number, since it uses less digits than its factorization.

347780412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 347780412 is about 18648.8716012524. The cubic root of 347780412 is about 703.2369891666.

The spelling of 347780412 in words is "three hundred forty-seven million, seven hundred eighty thousand, four hundred twelve".