655883438 has 32 divisors (see below), whose sum is σ = 1142553600. Its totient is φ = 276573024.

The previous prime is 655883413. The next prime is 655883447. The reversal of 655883438 is 834388556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382928 + ... + 384636.

It is an arithmetic number, because the mean of its divisors is an integer number (35704800).

Almost surely, 2^655883438 is an apocalyptic number.

655883438 is a deficient number, since it is larger than the sum of its proper divisors (486670162).

655883438 is a wasteful number, since it uses less digits than its factorization.

655883438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144.

The product of its digits is 2764800, while the sum is 50.

The square root of 655883438 is about 25610.2213578876. The cubic root of 655883438 is about 868.8448305432.

The spelling of 655883438 in words is "six hundred fifty-five million, eight hundred eighty-three thousand, four hundred thirty-eight".