345778812 has 36 divisors (see below), whose sum is σ = 892653216. Its totient is φ = 112806720.

The previous prime is 345778721. The next prime is 345778831. The reversal of 345778812 is 218877543.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100489 + ... + 103872.

Almost surely, 2^345778812 is an apocalyptic number.

It is an amenable number.

345778812 is an abundant number, since it is smaller than the sum of its proper divisors (546874404).

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

345778812 is a wasteful number, since it uses less digits than its factorization.

345778812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204418 (or 204413 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 345778812 is about 18595.1287169517. The cubic root of 345778812 is about 701.8852662712.

The spelling of 345778812 in words is "three hundred forty-five million, seven hundred seventy-eight thousand, eight hundred twelve".