655018442 has 16 divisors (see below), whose sum is σ = 1058528520. Its totient is φ = 302195712.

The previous prime is 655018439. The next prime is 655018451. The reversal of 655018442 is 244810556.

It can be written as a sum of positive squares in 4 ways, for example, as 546671161 + 108347281 = 23381^2 + 10409^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124538 + ... + 129690.

Almost surely, 2^655018442 is an apocalyptic number.

655018442 is a deficient number, since it is larger than the sum of its proper divisors (403510078).

655018442 is a wasteful number, since it uses less digits than its factorization.

655018442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 655018442 is about 25593.3280758873. The cubic root of 655018442 is about 868.4627108512.

Adding to 655018442 its reverse (244810556), we get a palindrome (899828998).

The spelling of 655018442 in words is "six hundred fifty-five million, eighteen thousand, four hundred forty-two".