618497922 has 32 divisors (see below), whose sum is σ = 1475177472. Its totient is φ = 169030224.

The previous prime is 618497917. The next prime is 618497947. The reversal of 618497922 is 229794816.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319168 + ... + 321099.

It is an arithmetic number, because the mean of its divisors is an integer number (46099296).

Almost surely, 2^618497922 is an apocalyptic number.

618497922 is an abundant number, since it is smaller than the sum of its proper divisors (856679550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618497922 is a wasteful number, since it uses less digits than its factorization.

618497922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640302.

The product of its digits is 435456, while the sum is 48.

The square root of 618497922 is about 24869.6184530443. The cubic root of 618497922 is about 852.0127260106.

The spelling of 618497922 in words is "six hundred eighteen million, four hundred ninety-seven thousand, nine hundred twenty-two".