345070428 has 24 divisors (see below), whose sum is σ = 822296832. Its totient is φ = 112575984.

The previous prime is 345070417. The next prime is 345070459. The reversal of 345070428 is 824070543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305350 + ... + 306477.

It is an arithmetic number, because the mean of its divisors is an integer number (34262368).

Almost surely, 2^345070428 is an apocalyptic number.

It is an amenable number.

345070428 is an abundant number, since it is smaller than the sum of its proper divisors (477226404).

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

345070428 is a wasteful number, since it uses less digits than its factorization.

345070428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611881 (or 611879 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 345070428 is about 18576.0713822918. The cubic root of 345070428 is about 701.4056299673.

The spelling of 345070428 in words is "three hundred forty-five million, seventy thousand, four hundred twenty-eight".