346778772 has 36 divisors (see below), whose sum is σ = 836121888. Its totient is φ = 111860400.

The previous prime is 346778759. The next prime is 346778777. The reversal of 346778772 is 277877643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346778777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3504 + ... + 26567.

It is an arithmetic number, because the mean of its divisors is an integer number (23225608).

Almost surely, 2^346778772 is an apocalyptic number.

It is an amenable number.

346778772 is an abundant number, since it is smaller than the sum of its proper divisors (489343116).

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

346778772 is a wasteful number, since it uses less digits than its factorization.

346778772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30140 (or 30107 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 51.

The square root of 346778772 is about 18621.9969928040. The cubic root of 346778772 is about 702.5612106253.

The spelling of 346778772 in words is "three hundred forty-six million, seven hundred seventy-eight thousand, seven hundred seventy-two".