618420448 has 12 divisors (see below), whose sum is σ = 1217515320. Its totient is φ = 309210208.

The previous prime is 618420427. The next prime is 618420461. The reversal of 618420448 is 844024816.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9662788 + ... + 9662851.

It is an arithmetic number, because the mean of its divisors is an integer number (101459610).

Almost surely, 2^618420448 is an apocalyptic number.

It is an amenable number.

618420448 is a deficient number, since it is larger than the sum of its proper divisors (599094872).

618420448 is a wasteful number, since it uses less digits than its factorization.

618420448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19325649 (or 19325641 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 618420448 is about 24868.0608009551. The cubic root of 618420448 is about 851.9771497174.

The spelling of 618420448 in words is "six hundred eighteen million, four hundred twenty thousand, four hundred forty-eight".