345628377 has 42 divisors (see below), whose sum is σ = 551993418. Its totient is φ = 215566272.

The previous prime is 345628303. The next prime is 345628399. The reversal of 345628377 is 773826543.

345628377 is a `hidden beast` number, since 3 + 4 + 562 + 83 + 7 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 325297296 + 20331081 = 18036^2 + 4509^2 .

It is not a de Polignac number, because 345628377 - 2¹² = 345624281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345628477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 2069548 + ... + 2069714.

Almost surely, 2^345628377 is an apocalyptic number.

It is an amenable number.

345628377 is a deficient number, since it is larger than the sum of its proper divisors (206365041).

345628377 is an frugal number, since it uses more digits than its factorization.

345628377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 187 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 345628377 is about 18591.0832659100. The cubic root of 345628377 is about 701.7834637869.

The spelling of 345628377 in words is "three hundred forty-five million, six hundred twenty-eight thousand, three hundred seventy-seven".