618279946 has 8 divisors (see below), whose sum is σ = 931400964. Its totient is φ = 307812960.

The previous prime is 618279943. The next prime is 618279967. The reversal of 618279946 is 649972816.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 500014321 + 118265625 = 22361^2 + 10875^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 618279893 and 618279902.

It is not an unprimeable number, because it can be changed into a prime (618279941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662925 + ... + 663856.

Almost surely, 2^618279946 is an apocalyptic number.

618279946 is a deficient number, since it is larger than the sum of its proper divisors (313121018).

618279946 is a wasteful number, since it uses less digits than its factorization.

618279946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327016.

The product of its digits is 1306368, while the sum is 52.

The square root of 618279946 is about 24865.2356916238. The cubic root of 618279946 is about 851.9126231964.

The spelling of 618279946 in words is "six hundred eighteen million, two hundred seventy-nine thousand, nine hundred forty-six".