545398 has 16 divisors (see below), whose sum is σ = 944640. Its totient is φ = 231336.

The previous prime is 545387. The next prime is 545429. The reversal of 545398 is 893545.

It is a congruent number.

It is an unprimeable number.

545398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (59040).

2⁵⁴⁵³⁹⁸ is an apocalyptic number.

545398 is a deficient number, since it is larger than the sum of its proper divisors (399242).

545398 is a wasteful number, since it uses less digits than its factorization.

545398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411.

The product of its digits is 21600, while the sum is 34.

The square root of 545398 is about 738.5106634301. The cubic root of 545398 is about 81.7029705776.

The spelling of 545398 in words is "five hundred forty-five thousand, three hundred ninety-eight".