343477428 has 24 divisors (see below), whose sum is σ = 915940032. Its totient is φ = 98136384.

The previous prime is 343477403. The next prime is 343477441. The reversal of 343477428 is 824774343.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 343477428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2044425 + ... + 2044592.

It is an arithmetic number, because the mean of its divisors is an integer number (38164168).

Almost surely, 2^343477428 is an apocalyptic number.

It is an amenable number.

343477428 is an abundant number, since it is smaller than the sum of its proper divisors (572462604).

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

343477428 is a wasteful number, since it uses less digits than its factorization.

343477428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089031 (or 4089029 counting only the distinct ones).

The product of its digits is 451584, while the sum is 42.

The square root of 343477428 is about 18533.1440398007. The cubic root of 343477428 is about 700.3246303793.

The spelling of 343477428 in words is "three hundred forty-three million, four hundred seventy-seven thousand, four hundred twenty-eight".