545720458 has 8 divisors (see below), whose sum is σ = 819909252. Its totient is φ = 272417376.

The previous prime is 545720447. The next prime is 545720467. The reversal of 545720458 is 854027545.

It can be written as a sum of positive squares in 2 ways, for example, as 470325969 + 75394489 = 21687^2 + 8683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 545720458.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219885 + ... + 222352.

Almost surely, 2^545720458 is an apocalyptic number.

545720458 is a deficient number, since it is larger than the sum of its proper divisors (274188794).

545720458 is a wasteful number, since it uses less digits than its factorization.

545720458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442856.

The product of its (nonzero) digits is 224000, while the sum is 40.

The square root of 545720458 is about 23360.6604786765. The cubic root of 545720458 is about 817.1906927133.

The spelling of 545720458 in words is "five hundred forty-five million, seven hundred twenty thousand, four hundred fifty-eight".