346778652 has 144 divisors (see below), whose sum is σ = 964414080. Its totient is φ = 95904000.

The previous prime is 346778651. The next prime is 346778681. The reversal of 346778652 is 256877643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346778651) 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, 3433402 + ... + 3433502.

It is an arithmetic number, because the mean of its divisors is an integer number (6697320).

Almost surely, 2^346778652 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 346778652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482207040).

346778652 is an abundant number, since it is smaller than the sum of its proper divisors (617635428).

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

346778652 is a wasteful number, since it uses less digits than its factorization.

346778652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 173 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 48.

The square root of 346778652 is about 18621.9937708077. The cubic root of 346778652 is about 702.5611295868.

The spelling of 346778652 in words is "three hundred forty-six million, seven hundred seventy-eight thousand, six hundred fifty-two".