345184428 has 12 divisors (see below), whose sum is σ = 805430360. Its totient is φ = 115061472.

The previous prime is 345184393. The next prime is 345184429. The reversal of 345184428 is 824481543.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (345184429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14382673 + ... + 14382696.

Almost surely, 2^345184428 is an apocalyptic number.

It is an amenable number.

345184428 is an abundant number, since it is smaller than the sum of its proper divisors (460245932).

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

345184428 is a wasteful number, since it uses less digits than its factorization.

345184428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28765376 (or 28765374 counting only the distinct ones).

The product of its digits is 122880, while the sum is 39.

The square root of 345184428 is about 18579.1395925646. The cubic root of 345184428 is about 701.4828619675.

The spelling of 345184428 in words is "three hundred forty-five million, one hundred eighty-four thousand, four hundred twenty-eight".