618940498 has 8 divisors (see below), whose sum is σ = 1012811760. Its totient is φ = 281336580.

The previous prime is 618940463. The next prime is 618940499. The reversal of 618940498 is 894049816.

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

It is not an unprimeable number, because it can be changed into a prime (618940499) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 14066808 + ... + 14066851.

It is an arithmetic number, because the mean of its divisors is an integer number (126601470).

Almost surely, 2^618940498 is an apocalyptic number.

618940498 is a deficient number, since it is larger than the sum of its proper divisors (393871262).

618940498 is a wasteful number, since it uses less digits than its factorization.

618940498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28133672.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 618940498 is about 24878.5147868598. The cubic root of 618940498 is about 852.2159012974.

The spelling of 618940498 in words is "six hundred eighteen million, nine hundred forty thousand, four hundred ninety-eight".