345430328 has 8 divisors (see below), whose sum is σ = 647681880. Its totient is φ = 172715160.

The previous prime is 345430277. The next prime is 345430343. The reversal of 345430328 is 823034543.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×345430328² = 238644223004375168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345430294 and 345430303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21589388 + ... + 21589403.

It is an arithmetic number, because the mean of its divisors is an integer number (80960235).

Almost surely, 2^345430328 is an apocalyptic number.

It is an amenable number.

345430328 is a deficient number, since it is larger than the sum of its proper divisors (302251552).

345430328 is a wasteful number, since it uses less digits than its factorization.

345430328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43178797 (or 43178793 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 345430328 is about 18585.7560513421. The cubic root of 345430328 is about 701.6493948678.

The spelling of 345430328 in words is "three hundred forty-five million, four hundred thirty thousand, three hundred twenty-eight".