578552642 has 4 divisors (see below), whose sum is σ = 867828966. Its totient is φ = 289276320.

The previous prime is 578552633. The next prime is 578552669. The reversal of 578552642 is 246255875.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 338891281 + 239661361 = 18409^2 + 15481^2 .

It is a junction number, because it is equal to n+sod(n) for n = 578552593 and 578552602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144638159 + ... + 144638162.

Almost surely, 2^578552642 is an apocalyptic number.

578552642 is a deficient number, since it is larger than the sum of its proper divisors (289276324).

578552642 is a wasteful number, since it uses less digits than its factorization.

578552642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289276323.

The product of its digits is 672000, while the sum is 44.

The square root of 578552642 is about 24053.1212527605. The cubic root of 578552642 is about 833.2608174055.

The spelling of 578552642 in words is "five hundred seventy-eight million, five hundred fifty-two thousand, six hundred forty-two".